Who Administers The Clean Air Act Quizlet

United States federal police to control air pollution

Clean Air Act

Long title	An Human action to ameliorate, strengthen, and advance programs for the prevention and abatement of air pollution, equally amended.
Acronyms (colloquial)	CAA
Codification
U.s.C. sections created	42 U.S.C. ch. 85 (§§ 7401-7671q)
Major amendments
Clean Air Act of 1963 (77 Stat. 392, Pub.L. 88–206) Motor Vehicle Air Pollution Control Act of 1965 (79 Stat. 992, Pub.50. 89–272) Air Quality Act of 1967 (81 Stat. 485, Pub.Fifty. 90–148) Clean Air Amendments of 1970 (84 Stat. 1676, Pub.Fifty. 91–604) Clean Air Act Amendments of 1977 (91 Stat. 685, Pub.50. 95–95) Clean Air Act Amendments of 1990 (104 Stat. 2468, Pub.L. 101–549)
United States Supreme Court cases
Union Elec. Co. five. EPA, 427 U.South. 246 (1976) Chevron 5. NRDC, 467 U.S. 837 (1984) Whitman 5. Am. Trucking Ass'ns, 531 U.S. 457 (2001) Engineer Manufacturers Clan v. S Coast Air Quality Management District, 541 U.S. 246 (2004) Massachusetts 5. EPA, 549 U.Due south. 497 (2007) Environmental Defence force v. Duke Energy Corp., 549 U.S. 561 (2007) American Electric Power Co. v. Connecticut, 564 U.S. 410 (2011) EPA v. EME Homer City Generation, L. P., 572 U.S. 489 (2014) Utility Air Regulatory Group v. Ecology Protection Agency, 573 U.South. 302 (2014) Michigan v. EPA, No. 14-46, 576 U.S. ___ (2015) HollyFrontier Cheyenne Refining, LLC v. Renewable Fuels Assn., No. xx-472, 594 U.Due south. ___ (2021) West Virginia v. EPA (pending)

The Clean Air Deed (CAA) is the United states of america' primary federal air quality constabulary, intended to reduce and control air pollution nationwide. Initially enacted in 1963 and amended many times since, it is one of the United States' first and almost influential modern ecology laws.

Every bit with many other major U.South. federal environmental statutes, the Clean Air Human activity is administered by the U.South. Environmental Protection Agency (EPA), in coordination with state, local, and tribal governments.^{[i] : 2–three} EPA develops extensive administrative regulations to carry out the police force'south mandates. The associated regulatory programs are ofttimes technical and complex. Among the most important, the National Ambient Air Quality Standards program sets standards for concentrations of sure pollutants in outdoor air; the National Emissions Standards for Hazardous Air Pollutants programme sets standards for emissions of particular hazardous pollutants from specific sources. Other programs create requirements for vehicle fuels, industrial facilities, and other technologies and activities that impact air quality. Newer programs tackle specific problems, including acid rain, ozone layer protection, and climate alter.

Although its exact benefits depend on what is counted, the Make clean Air Human action has essentially reduced air pollution and improved The states air quality—benefits which EPA credits with saving trillions of dollars and many thousands of lives each year.

Regulatory programs

In the United States, the "Clean Air Act" typically refers to the codified statute at 42 U.Southward.C. ch. 85. That statute is the product of multiple acts of Congress, 1 of which—the 1963 act—was really titled the Clean Air Act, and another of which—the 1970 human activity—is most often referred to as such. In the U.Southward. Lawmaking, the statute itself is divided into subchapters, and the section numbers are non clearly related to the subchapters. Withal in the bills that created the constabulary, the major divisions are called "Titles", and the law's sections are numbered according to the championship (due east.thou., Title II begins with Section 201).^[ii] In practise, EPA, courts, and attorneys often apply the latter numbering scheme.

Although many parts of the statute are quite detailed, others set out simply the full general outlines of the law's regulatory programs, and go out many key terms undefined. Responsible agencies, primarily EPA, have therefore developed administrative regulations to carry out Congress's instructions. EPA's proposed and final regulations are published in the Federal Annals, oftentimes with lengthy groundwork histories. The existing CAA regulations are codified at 40 C.F.R. Subchapter C, Parts 50–98.^[three] These Parts more oft represent to the Make clean Air Human activity'due south major regulatory programs.

Today, the following are major regulatory programs under the Clean Air Act.

National Ambient Air Quality Standards

The National Ambience Air Quality Standards (NAAQS) govern how much basis-level ozone (O₃), carbon monoxide (CO), particulate matter (PM₁₀, PM_2.five), lead (Pb), sulfur dioxide (SO₂), and nitrogen dioxide (NO₂) are allowed in the outdoor air.^[4] The NAAQS set the acceptable levels of certain air pollutants in the ambient air in the The states. Prior to 1965, there was no national programme for developing ambient air quality standards, and prior to 1970 the federal regime did not take primary responsibility for developing them. The 1970 CAA amendments required EPA to make up one's mind which air pollutants posed the greatest threat to public health and welfare and promulgate NAAQS and air quality criteria for them. The health-based standards were called "primary" NAAQS, while standards ready to protect public welfare other than health (due east.chiliad., agricultural values) were called "secondary" NAAQS. In 1971, EPA promulgated regulations for sulfur oxides, particulate affair, carbon monoxide, photochemical oxidants, hydrocarbons, and nitrogen dioxide (36 FR 22384). Initially, EPA did non list lead as a criteria pollutant, controlling it through mobile source authorities, just information technology was required to do so later successful litigation by Natural Resources Defense Council (NRDC) in 1976 (43 FR 46258). The 1977 CAA Amendments created a procedure for regular review of the NAAQS list, and created a permanent independent scientific review commission to provide technical input on the NAAQS to EPA.^[5] EPA added regulations for PM2.5 in 1997 (62 FR 38652), and updates the NAAQS from time to fourth dimension based on emerging ecology and health scientific discipline.

National Emissions Standards for Hazardous Air Pollutants

The National Emissions Standards for Hazardous Air Pollutants (NESHAPs) govern how much of 187 toxic air pollutants are immune to exist emitted from industrial facilities and other sources.^[6] Under the CAA, hazardous air pollutants (HAPs, or air toxics) are air pollutants other than those for which NAAQS exist, which threaten homo health and welfare. The NESHAPs are the standards used for controlling, reducing, and eliminating HAPs emissions from stationary sources such as industrial facilities. The 1970 CAA required EPA to develop a listing of HAPs, and then develop national emissions standards for each of them. The original NESHAPs were wellness-based standards. The 1990 CAA Amendments (Pub.Fifty. 101–549 Title III) codified EPA's list, and required cosmos of applied science-based standards co-ordinate to "maximum achievable command technology" (MACT). Over the years, EPA has issued dozens of NESHAP regulations, which have developed NESHAPs by pollutant, by industry source category, and by industrial process. There are likewise NESHAPs for mobile sources (transportation), although these are primarily handled under the mobile source regime.^[vii] The 1990 amendments (adding CAA § 112(d-f)) also created a process by which EPA was required to review and update its NESHAPs every eight years, and identify whatever risks remaining after application of MACT, and develop additional rules necessary to protect public health.^[8]

New Source Performance Standards

The New Source Operation Standards (NSPS) are rules for the equipment required to be installed in new and modified industrial facilities, and the rules for determining whether a facility is "new".^[9] The 1970 CAA required EPA to develop standards for newly-constructed and modified stationary sources (industrial facilities) using the "best organization of emission reduction which (taking into account the cost of achieving such reduction) the [EPA] determines has been fairly demonstrated." EPA issued its first NSPS regulation the next year, covering steam generators, incinerators, Portland cement plants, and nitric and sulfuric acid plants (36 FR 24876). Since then, EPA has issued dozens of NSPS regulations, primarily by source category. The requirements promote industrywide adoption of available pollution control technologies. Yet, because these standards apply simply to new and modified sources, they promote extending the lifetimes of pre-existing facilities. In the 1977 CAA Amendments, Congress required EPA to deport a "new source review" process (xl CFR 52, subpart I) to determine whether maintenance and other activities rises to the level of modification requiring application of NSPS.^[10]

Acrid Pelting Program

The Acid Rain Program (ARP) is an emissions trading program for power plants to control the pollutants that cause acid rain.^[eleven] The 1990 CAA Amendments created a new title to address the event of acid rain, and peculiarly nitrogen oxides (NO₁₀) and sulfur dioxide (Then_ii) emissions from electric power plants powered past fossil fuels, and other industrial sources. The Acrid Rain Program was the first emissions trading program in the United States, setting a cap on full emissions that was reduced over time past style of traded emissions credits, rather than direct controls on emissions. The plan evolved in two stages: the get-go phase required more than 100 electric generating facilities larger than 100 megawatts to meet a 3.5 one thousand thousand ton SO_ii emission reduction by January 1995. The second stage gave facilities larger than 75 megawatts a Jan 2000 deadline. The program has achieved all of its statutory goals.^[12]

Ozone layer protection

The CAA ozone programme is a technology transition program intended to phase out the utilize of chemicals that harm the ozone layer.^[thirteen] Consequent with the US commitments in the Montreal Protocol, CAA Title VI, added by the 1990 CAA Amendments, mandated regulations regarding the apply and production of chemicals that harm World'southward stratospheric ozone layer. Under Title VI, EPA runs programs to stage out ozone-destroying substances, rail their import and consign, determine exemptions for their continued use, and define practices for destroying them, maintaining and servicing equipment that uses them, and identifying new alternatives to those still in utilise.

Mobile source programs

Rules for pollutants emitted from internal combustion engines in vehicles.^[14] Since 1965, Congress has mandated increasingly stringent controls on vehicle engine technology and reductions in tailpipe emissions. Today, the constabulary requires EPA to establish and regularly update regulations for pollutants that may threaten public wellness, from a wide variety of classes of motor vehicles, that contain technology to achieve the "greatest caste of emission reduction achievable", factoring in availability, toll, free energy, and safety (42 United states of americaC. § 7521).

On-route vehicles regulations

EPA sets standards for frazzle gases, evaporative emissions, air toxics, refueling vapor recovery, and vehicle inspection and maintenance for several classes of vehicles that travel on roadways. EPA's "light-duty vehicles" regulations embrace passenger cars, minivans, passenger vans, pickup trucks, and SUVs. "Heavy-duty vehicles" regulations comprehend large trucks and buses. EPA outset issued motorcycle emissions regulations in 1977 (42 FR 1122) and updated them in 2004 (69 FR 2397).

Vehicle testing program

The air pollution testing system for motor vehicles was originally developed in 1972 and used driving cycles designed to simulate driving during blitz-hour in Los Angeles during that era. Until 1984, EPA reported the verbal fuel economy figures calculated from the test.^{[ commendation needed ]} In 1984, EPA began adjusting urban center (aka Urban Dynamometer Driving Schedule or UDDS) results downward by x% and highway (aka HighWay Fuel Economy Test or HWFET) results by 22% to compensate for changes in driving weather since 1972, and to amend correlate the EPA examination results with real-globe driving. In 1996, EPA proposed updating the Federal Testing Procedures^[15] to add a new college-speed test (US06) and an air-conditioner-on test (SC03) to farther improve the correlation of fuel economy and emission estimates with real-world reports. In Dec 2006 the updated testing methodology was finalized to be implemented in model year 2008 vehicles and set up the precedent of a 12-yr review cycle for the test procedures.^[16]

In February 2005, EPA launched a plan chosen "Your MPG" that allows drivers to add together real-world fuel economy statistics into a database on EPA's fuel economic system website and compare them with others and with the original EPA test results.^[17]

EPA conducts fuel economy tests on very few vehicles.^[18] 2-thirds of the vehicles the EPA tests themselves are randomly selected and the remaining third is tested for specific reasons.

Although originally created as a reference signal for fossil-fueled vehicles, driving cycles accept been used for estimating how many miles an electric vehicle will get on a unmarried charge.^[19]

Non-road vehicles regulations

The 1970 CAA amendments provided for regulation of aircraft emissions (42 United statesC. § 7571), and EPA began regulating in 1973. In 2022, EPA finalized its newest restrictions on NOx emissions from gas turbine aircraft engines with rated thrusts above 26.7 kiloNewton (3 short ton-strength), pregnant primarily commercial jet shipping engines, intended to match international standards. EPA has been investigating whether to regulate pb in fuels for small shipping since 2022, but has not yet acted. The 1990 CAA Amendments (Pub.L. 101–549 § 222) added rules for a "nonroad" engine programme (42 United statesC. § 7547), which expanded EPA regulation to locomotives, heavy equipment and pocket-sized equipment engines fueled by diesel (pinch-ignition), and gas and other fuels (spark-ignition), and marine ship.

Voluntary programs

EPA has adult a variety of voluntary programs to incentivize and promote reduction in transportation-related air pollution, including elements of the Clean Diesel Campaign, Ports Initiative, SmartWay program, and others.

Fuel controls

EPA has regulated the chemic limerick of transportation fuels since 1967, with significant new authorisation added in 1970 to protect public health.^[20] One of EPA'due south earliest actions was the emptying of lead in U.S. gasoline starting time in 1971 (36 FR 1486, 37 FR 3882, 38 FR 33734), a project that has been described as "1 of the bully public health achievements of the 20th century."^[21] EPA continues to regulate the chemical composition of gasoline, avgas, and diesel fuel in the United States.

State implementation plans

The 1963 act required development of Country Implementation Plans (SIPs) as part of a cooperative federalist programme for developing pollution control standards and programs.^[22] Rather than create a solely national program, the CAA imposes responsibilities on the U.S. states to create plans to implement the Human action's requirements. EPA so reviews, amends, and approves those plans. EPA outset promulgated SIP regulations in 1971 and 1972.^[23]

Not-attainment areas

The 1977 CAA Amendments added SIP requirements for areas that had not attained the applicable NAAQS ("nonattainment areas"). In these areas, states were required to adopt plans that fabricated "reasonable farther progress" toward attainment until all all "reasonably available control measures" could be adopted. As progress on attainment was much slower than Congress originally instructed, major amendments to SIP requirements in nonattainment areas were role of the 1990 CAA Amendments.^[24]

Prevention of significant deterioration

The 1977 CAA Amendments modified the SIP requirements by adding "Prevention of Meaning Deterioration" (PSD) requirements. These requirements protect areas, including especially wilderness areas and national parks, that already met the NAAQS. The PSD provision requires SIPs to preserve good quality air in addition to cleaning up bad air. The new law likewise required New Source Review (investigations of proposed construction of new polluting facilities) to examine whether PSD requirements would be met.^[25]

Stationary source operating permits

The 1990 amendments authorized a national operating allow program, sometimes called the "Championship Five Program", covering thousands of big industrial and commercial sources. It required large businesses to address pollutants released into the air, measure their quantity, and accept a programme to control and minimize them as well as to periodically report. This consolidated requirements for a facility into a single document.^{[1] : xix} In non-attainment areas, permits were required for sources that emit as little as fifty, 25, or ten tons per year of VOCs depending on the severity of the region's non-attainment status.^[26] Virtually permits are issued by state and local agencies.^[27] If the state does non adequately monitor requirements, the EPA may take command. The public may request to view the permits by contacting the EPA. The let is limited to no more v years and requires a renewal.^[26]

Monitoring and enforcement

One of the virtually public aspects of the Clean Air Deed, EPA is empowered to monitor compliance with the law'south many requirements, seek penalties for violations, and compel regulated entities to come into compliance.^[28] Enforcement cases are usually settled, with penalties assessed well beneath maximum statutory limits.^{[ citation needed ]} Recently, many of the largest Clean Air Act settlements accept been reached with automakers accused of circumventing the Deed's vehicle and fuel standards (e.k., the 2022 "Dieselgate" scandal).

Greenhouse gas regulation

Much of EPA'south regulation of greenhouse gas (GHG) emissions occurs under the programs discussed above. EPA began regulating GHG emissions following the Supreme Courtroom's ruling in Massachusetts 5. EPA, the EPA's subsequent endangerment finding, and development of specific regulations for various sources.^[29] Standards for mobile sources take been established pursuant to Section 202 of the CAA, and GHGs from stationary sources are controlled under the authorisation of Part C of Title I of the Act. The EPA's auto emission standards for greenhouse gas emissions issued in 2022 and 2022 are intended to cut emissions from targeted vehicles by one-half, double fuel economic system of passenger cars and light-duty trucks by 2025 and save over $4 billion barrels of oil and $one.7 trillion for consumers. The bureau has too proposed a two-phase programme to reduce greenhouse gas emissions for medium and heavy duty trucks and buses.^{[ needs update ] [thirty]} In addition, EPA oversees the national greenhouse gas inventory reporting program.^[31]

Others

Other important but less foundational Clean Air Deed regulatory programs tend to build on or cut across the above programs:

• Chance Assessment. Although not a regulatory program per se, many EPA regulatory programs involve hazard assessment and direction.^[32] Over the years, EPA has undertaken to unify and organize its many chance assessment processes. The 1990 CAA Amendments created a Commission on Risk Cess and Direction tasked with making recommendations for a gamble assessment framework,^[33] and many subsequent reports accept built on this work.
• Visibility and Regional Haze. EPA monitors visibility and air clarity (brume) at 156 protected parks and wilderness areas, and requires states to develop plans to ameliorate visibility past reducing pollutants that contribute to brume.^[34]
• Interstate pollution control. The Clean Air Act's "good neighbor" provision requires states to control emissions that will significantly contribute to NAAQS nonattainment or maintenance in a downwind state.^{[35] [36]} EPA has struggled to enact regulations that implement this requirement for many years. It adult the "Make clean Air Interstate Rule" between 2003 and 2005, only this was overturned by the courts in 2008. EPA then developed the Cantankerous-State Air Pollution Rule between 2009 and 2022, and information technology continues to be litigated as EPA updates it.
• Startup, Shutdown, & Malfunction. EPA promulgates rules for states to address excess emissions during periods of startup, shutdown, and malfunction, when facility emissions may temporarily be much college than standard regulatory limits.^[37]

History

Betwixt the 2nd Industrial Revolution and the 1960s, the United States experienced increasingly severe air pollution. Following the 1948 Donora smog event, the public began to hash out air pollution equally a major problem, states began to laissez passer a series of laws to reduce air pollution, and Congress began discussing whether to accept farther action in response. At the time, the primary federal agencies interested in air pollution were the United States Agency of Mines, which was interested in "smoke abatement" (reducing smoke from coal called-for), and the United States Public Health Service, which handled industrial hygiene and was concerned with the causes of lung wellness problems.^[38]

After several years of proposals and hearings, Congress passed the first federal legislation to address air pollution in 1955. The Air Pollution Control Act of 1955 authorized a enquiry and training program, sending $3 meg per year to the U.Southward. Public Health Service for five years, but did not directly regulate pollution sources. The 1955 Act's research program was extended in 1959, 1960, and 1962 while Congress considered whether to regulate further.

Showtime in 1963, Congress began expanding federal air pollution control law to accelerate the elimination of air pollution throughout the land. The new law's programs were initially administered past the U.South. Secretarial assistant of Health, Teaching, and Welfare, and the Air Pollution Office of the U.Due south. Public Health Service, until they were transferred to the newly-created EPA immediately before major amendments in 1970. EPA has administered the Clean Air Act always since, and Congress added major regulatory programs in 1977 and 1990.^[39] Most recently, the U.S. Supreme Court'due south ruling in Massachusetts five. EPA resulted in an expansion of EPA's CAA regulatory activities to encompass greenhouse gases.

Clean Air Act of 1963 and Early on Amendments. The Clean Air Act of 1963 (Pub.L. 88–206) was the get-go federal legislation to permit the U.South. federal government to take directly action to command air pollution. It extended the 1955 research program, encouraged cooperative land, local, and federal activity to reduce air pollution, appropriated $95 meg over iii years to support the development of state pollution control programs, and authorized the HEW Secretary to organize conferences and have direct action confronting interstate air pollution where country action was deemed to be insufficient.^[38]

The Motor Vehicle Air Pollution Control Act (Pub.Fifty. 89–272) amended the 1963 Make clean Air Act and set the first federal vehicle emissions standards, beginning with the 1968 models. These standards were reductions from 1963 emissions levels: 72% reduction for hydrocarbons, 56% reduction for carbon monoxide, and 100% reduction for crankcase hydrocarbons.^{[ commendation needed ]}. The law also added a new section to authorize abatement of international air pollution.^[40]

The Air Quality Act of 1967 (Pub.L. 90–148) authorized planning grants to state air pollution command agencies, permitted the creation of interstate air pollution control agencies, and required HEW to define air quality regions and develop technical documentation that would allow states to set up ambient air quality and pollution command engineering standards, and required states to submit implementation plans for improvement of air quality, and permitted HEW to take direct abatement activeness in air pollution emergencies. Information technology too authorized expanded studies of air pollutant emission inventories, ambience monitoring techniques, and command techniques.^{[41] [40]} This enabled the federal government to increase its activities to investigate enforcing interstate air pollution transport, and, for the first fourth dimension, to perform far-reaching ambience monitoring studies and stationary source inspections. The 1967 deed besides authorized expanded studies of air pollutant emission inventories, ambient monitoring techniques, and command techniques.^[42] While but 6 states had air pollution programs in 1960, all 50 states had air pollution programs past 1970 due to the federal funding and legislation of the 1960s.^[30]

President Richard Nixon signs the Make clean Air Amendments of 1970 at the White House, December 31, 1970.

1970 Amendments. In the Clean Air Amendments of 1970 (Pub.L. 91–604), Congress greatly expanded the federal mandate by requiring comprehensive federal and land regulations for both industrial and mobile sources. The law established the National Ambience Air Quality Standards (NAAQS), New Source Performance Standards (NSPS); and National Emissions Standards for Hazardous Air Pollutants (NESHAPs), and significantly strengthened federal enforcement authorization, all toward achieving aggressive air pollution reduction goals.

To implement the strict amendments, EPA Administrator William Ruckelshaus spent 60% of his fourth dimension during his outset term on the car manufacture, whose emissions were to be reduced 90% under the new police. Senators had been frustrated at the industry's failure to cutting emissions under previous, weaker air laws.^[43]

1977 Amendments. Major amendments were added to the Clean Air Act in 1977 (1977 CAAA) (91 Stat. 685, Pub.L. 95–95). The 1977 Amendments primarily concerned provisions for the Prevention of Significant Deterioration (PSD) of air quality in areas attaining the NAAQS. The 1977 CAAA also contained requirements pertaining to sources in non-attainment areas for NAAQS. A non-attainment expanse is a geographic area that does not meet one or more than of the federal air quality standards. Both of these 1977 CAAA established major permit review requirements to ensure attainment and maintenance of the NAAQS.^[42] These amendments also included the adoption of an offset trading policy originally applied to Los Angeles in 1974 that enables new sources to outset their emissions by purchasing actress reductions from existing sources.^[thirty]

The Clean Air Human activity Amendments of 1977 required Prevention of Significant Deterioration (PSD) of air quality for areas attaining the NAAQS and added requirements for non-attainment areas.^[44]

President George H. W. Bush signs the Clean Air Act Amendments of 1990 at the White Firm, November 15, 1990.

1990 Amendments. Some other set of major amendments to the Clean Air Act occurred in 1990 (1990 CAAA) (104 Stat. 2468, Pub.50. 101–549). The 1990 CAAA substantially increased the authority and responsibility of the federal government. New regulatory programs were authorized for control of acrid deposition (acrid rain)^[45] and for the issuance of stationary source operating permits. The NESHAPs were incorporated into a profoundly expanded plan for controlling toxic air pollutants. The provisions for attainment and maintenance of NAAQS were substantially modified and expanded. Other revisions included provisions regarding stratospheric ozone protection, increased enforcement potency, and expanded research programs.^[42]

The 1990 Clean Air Act added regulatory programs for control of acid deposition (acrid rain) and stationary source operating permits. The provisions aimed at reducing sulfur dioxide emissions included a cap-and-trade program, which gave power companies more flexibility in coming together the police force's goals compared to earlier iterations of the Make clean Air Act.^[46] The amendments moved considerably beyond the original criteria pollutants, expanding the NESHAP program with a list of 189 hazardous air pollutants to be controlled within hundreds of source categories, according to a specific schedule.^[one]{rp|16}} The NAAQS plan was also expanded. Other new provisions covered stratospheric ozone protection, increased enforcement authorisation and expanded enquiry programs.^[47]

Farther amendments were made in 1990 to accost the issues of acrid rain, ozone depletion, and toxic air pollution, and to institute a national permit plan for stationary sources, and increased enforcement authority. The amendments also established new car gasoline reformulation requirements, set Reid vapor force per unit area (RVP) standards to control evaporative emissions from gasoline, and mandated new gasoline formulations sold from May to September in many states. Reviewing his tenure equally EPA Administrator nether President George H. W. Bush, William K. Reilly characterized passage of the 1990 amendments to the Clean Air Human activity equally his most notable accomplishment.^[48]

Federalism. Before 1970, in that location was merely a very limited national air pollution command program, with about all enforcement authority reserved to state and local governments, equally had been the case traditionally under U.Due south. federalism. The 1970 Clean Air Act was a major evolution in this organization, providing EPA with enforcement authority and requiring states to develop State Implementation Plans for how they would meet new national ambience air quality standards by 1977.^[49] This cooperative federal model continues today. The law recognizes that states should lead in carrying out the Make clean Air Act, because pollution control problems oftentimes require special understanding of local industries, geography, housing patterns, etc. Still, states are not allowed to have weaker controls than the national minimum criteria set up by EPA. EPA must approve each SIP, and if a SIP is not adequate, EPA can retain CAA enforcement in that state. For case, California was unable to meet the new standards gear up by the Make clean Air Amendments of 1970, which led to a lawsuit and a federal country implementation program for the state.^[50] The federal government too assists the states past providing scientific research, skillful studies, engineering designs, and money to support make clean air programs. The law besides prevents states from setting standards that are more strict than the federal standards, but carves out a special exemption for California due to its past issues with smog pollution in the metropolitan areas. In practice, when California'south environmental agencies decide on new vehicle emission standards, they are submitted to the EPA for blessing under this waiver, with the most contempo approval in 2009.^[51] The California standard was adopted by twelve other states, and established the de facto standard that machine manufacturers subsequently accustomed, to avoid having to develop different emission systems in their vehicles for unlike states. However, in September 2022, President Donald Trump attempted to revoke this waiver, arguing that the stricter emissions have made cars too expensive, and by removing them, will make vehicles safer. EPA'due south Andrew Wheeler also stated that while the agency respects federalism, they could not allow one state to dictate standards for the entire nation. California'southward governor Gavin Newsom considered the motion part of Trump's "political vendetta" against California and stated his intent to sue the federal government.^[52] Twenty-iii states, forth with the District of Columbia and the cities of New York City and Los Angeles, joined California in a federal lawsuit challenging the assistants'due south decision.^[53]

Effects

Graph showing decreases in US air pollution concentrations during 1990 to 2022

Co-ordinate to a 2022 review study in the Journal of Economic Literature, there is overwhelming causal evidence that shows that the CAA improved air quality.^[54]

According to the nearly contempo study by EPA, when compared to the baseline of the 1970 and 1977 regulatory programs, by 2022 the updates initiated by the 1990 Clean Air Act Amendments would exist costing the U.s.a. about $threescore billion per yr, while benefiting the United states of america (in monetized health and lives saved) about $two trillion per year.^[55] In 2022, a study prepared for the Natural Resources Defense Council estimated annual benefits at 370,000 avoided premature deaths, 189,000 fewer hospital admissions, and net economic benefits of upwardly to $iii.8 trillion (32 times the cost of the regulations).^[56] Other studies take reached similar conclusions.^[57]

Mobile sources including automobiles, trains, and boat engines take become 99% cleaner for pollutants similar hydrocarbons, carbon monoxide, nitrogen oxides, and particle emissions since the 1970s. The commanded emissions of volatile organic chemicals, carbon monoxide, nitrogen oxides, and lead from individual cars accept as well been reduced by more than 90%, resulting in decreased national emissions of these pollutants despite a more 400% increase in total miles driven yearly.^[30] Since the 1980s, 1/4th of ground level ozone has been cut, mercury emissions accept been cut by fourscore%, and since the change from leaded gas to unleaded gas 90% of atmospheric lead pollution has been reduced.^[58] A 2022 written report institute that the Clean Air Human activity contributed to the 60% decline in pollution emissions by the manufacturing industry between 1990 and 2008.^{[59] [60]}

Legal challenges

Since its inception, the dominance given to the EPA by Congress and the EPA's rulemaking within the Clean Air Act has been subject field to numerous lawsuits. Some of the major suits where the Clean Air Human activity has been focal bespeak of litigation include the following:

Train v. Natural Resources Defense Quango, Inc., 421 U.Due south. 60 (1975)

Under the Clean Air Human action, states were required to submit their implementation plans inside nine months of the EPA'due south promulgation of the new standards. The EPA canonical several state plans that allowed for variances in their emissions limitations, and the Natural Resources Defense Council challenged that approval. The Supreme Court held that the EPA's approval was valid, and that as long as the "ultimate result of a Country's choice of emission limitations is compliance with the national standards for ambient air," a state is "at liberty to adopt whatever mix of emission limitations information technology deems best suited to its particular state of affairs."^[61]

Chevron United statesA., Inc. 5. Natural Resources Defence Council, Inc., 467 U.South. 837 (1984)

The Clean Air Deed instructed the EPA to regulate emissions from sources of air pollution, but did not ascertain what should be considered a source for the emission of air pollution, so the EPA had interpreted what a source was based on the legislation. The EPA'south interpretation was challenged, but afterwards review, the Supreme Court ruled in a 7–0 determination that the EPA had judicial deference to found their own interpretation of law when the law is ambiguous and the estimation is reasonable and consistent. This principle has come to exist known as the Chevron deference applying to any executive agency granted powers from Congress.^[62]

Whitman five. American Trucking Ass'ns, Inc., 531 U.S. 457 (2001)

Following the EPA's rulemaking related to setting NAAQS standards related to diesel fuel truck emissions, the trucking industry challenged the EPA's rule in lower courts, asserting the EPA'due south rule failed to justify reasoning for these new levels and violated the nondelegation doctrine. The D.C. Excursion Court found in favor of the trucking industry, determining that the EPA's rule did not consider the costs of implementing emissions regulations and controls. The Supreme Court reversed the D.C. District Courtroom'due south ruling, affirming that not only was the delegation of power from Congress to the EPA by the Clean Air Act constitutional, but that the law did non crave the EPA to consider costs as function of its determination for air quality controls.^[63]

Massachusetts five. Environmental Protection Bureau, 549 U.Due south. 497 (2007)

With pressure from states and environmental groups on the EPA to regulate carbon dioxide and other greenhouse gas emissions from motor vehicles, the EPA adamant in 2003 that the language of the Make clean Air Act did not allow them to regulate emissions from motor vehicles, nor were they motivated to set such regulations fifty-fifty if they were able to. Multiple states and agencies sued the EPA for failing to act on what they considered to exist harmful air pollutants. The Supreme Court ruled 5–4 that not simply did the Clean Air Human activity mandate the EPA to regulate carbon dioxide and other greenhouse gases every bit air pollutants, but that failing to regulate these emissions would go out the EPA liable to further litigation.^[64] While the conclusion has remained contentious, the Courtroom's decision in Massachusetts v. EPA was considered landmark, every bit it opened up the courts for further environmental lawsuits to forcefulness entities to respond to climate change.^[65]

American Electrical Power Co. v. Connecticut, 564 U.Southward. 410 (2011)

Several states and cities sued electrical utility companies to force them to utilise a cap-and-trade system to reduce their emissions under a claim their emissions were a public nuisance. The Supreme Court ruled in an 8–0 determination that private companies cannot exist sued by other parties for emissions-related issues, as this is a power specifically delegated to the EPA through the Clean Air Act under federal mutual law.^[66]

Utility Air Regulatory Grouping v. Environmental Protection Agency, 573 U.S. 302 (2014)

The EPA issued new rules in 2022 that expanded emissions regulations for both regulated air pollutants and greenhouse gases to light and heavy engines and smaller stationary sources. These expanded rules were challenged by several power companies and regulatory groups, as they greatly expanded what types of facilities would need to larn environmental permits prior to construction. The Supreme Courtroom generally upheld the EPA's powers through the Clean Air Act, through information technology vacated portions of the EPA's new rules affecting smaller sources.^[67]

Michigan v. EPA, 576 U.S. 743 (2015)

In 2022, the EPA issued new rules that identified new pollutants such as mercury as chancy materials to be regulated in power establish emissions. The cost of implementing mercury pollution controls on new and existing plants can be expensive, and several states, companies, and other organizations sued the EPA that their analysis leading to these new rules did not consider the cost factor involved. The Supreme Court ruled 5–iv that the EPA's failure to consider the costs of these pollution controls was inappropriate, and that cost must exist a factor in whatsoever finding that the EPA finds "necessary and appropriate" nether the Clean Air Act.^[68]

West Virginia v. EPA, pending

Due to an oversight during reconciliation in 1990, 42 U.Southward.C. § 7411(d) includes both House and Senate language related to the EPA's potency to regulate carbon dioxide emissions from existing ability plants, with the House version disallow information technology while the Senate version allowing it. Equally part of the Make clean Power Plan rules in 2022, the EPA relied on the Senate version of §7411(d) to implement new rules for existing sources to significantly cut carbon dioxide emissions. The new rules were challenged in court, but due to the change from the Obama assistants to the Trump administration, the Make clean Power Plan was repealed by the EPA in favor of the Affordable Make clean Energy rule, seeking just a fraction of the emissions reductions from the Clean Power Plan. The Affordable Make clean Energy dominion was challenged in court and the D.C. Commune Court affirmed that the rule was arbitrary and capricious and failed to uphold the EPA's mandate to the Clean Air Act based on the Senate'southward version of §7411(d). The Court'due south decision was brought to the Supreme Court past multiple states and the coal industry, seeking to determine if the EPA properly interpreted the intent of §7411(d). The case was certified, consolidating four petitions, and will be heard during the 2022–22 term.^[69]

Future challenges

As of 2022, some U.s. cities still do non meet all national ambience air quality standards. It is likely that tens of thousands of premature deaths are yet being acquired by fine-particle pollution and footing-level ozone pollution.^[30]

Climate change poses a challenge to the management of conventional air pollutants in the United States due to warmer, dryer summer conditions that can pb to increased air stagnation episodes. Prolonged droughts that may contribute to wildfires would also result in regionally high levels of air particles.^[70]

Transboundary air pollution (both entering and exiting the United states) is not directly regulated by the Clean Air Human activity, requiring international negotiations and ongoing agreements with other nations, particularly Canada and United mexican states.^[71]

Environmental justice continues to exist an ongoing challenge for the Clean Air Human activity. By promoting pollution reduction, the Make clean Air Act helps reduce heightened exposure to air pollution among communities of color and low-income communities.^[72] Merely African American populations are "consistently over represented" in areas with the poorest air quality.^[73] Dumbo populations of low-income and minority communities inhabit the most polluted areas beyond the United States, which is considered to exacerbate health problems among these populations.^[74] High levels of exposure to air pollution is linked to several health conditions, including asthma, cancer, premature decease, and infant mortality, each of which disproportionately touch communities of colour and low-income communities.^[75] The pollution reduction achieved by the Make clean Air Act is associated with a decline in each of these weather and can promote environmental justice for communities that are disproportionately impacted by air pollution and diminished health status.^[75]

References

1. ^ ^{a b c} "The Patently English language Guide to the Make clean Air Act" (PDF). Washington, DC: US Environmental Protection Bureau (EPA). April 2007. p. nineteen. EPA 456/K-07-001.
2. ^ "Clean Air Act Text". EPA. March 24, 2022.
3. ^ forty C.F.R. "Subchapter C (Air Programs)".
4. ^ NAAQS Plan:
   • Kickoff enacted: 1970 CAA amendments, Pub.L. 91–604 § 4.
   • Location in statute: CAA § 109, 42 UsaC. § 7409.
   • Major regulations: 40 CFR 50.
   • EPA pages: "Criteria Air Pollutants". April 9, 2022. "NAAQS". September 9, 2022.
5. ^ See "EPA Make clean Air Scientific Advisory Committee".
6. ^ NESHAPS Program:
   • First enacted: 1970 CAA amendments, Pub.L. 91–604 § iv.
   • Location in statute: CAA § 112, 42 United states of americaC. § 7412.
   • Major regulations: 40 CFR 61, 40 CFR 63.
   • EPA pages: "Hazardous Air Pollutants". December 2, 2022. "EPA HAPs List". December sixteen, 2022. "EPA NESHAP Source Categories". May 6, 2022.
7. ^ "HAPs Mobile Source Dominion". EPA. August three, 2022.
8. ^ "NESHAPs Gamble and Engineering Review". EPA. December 15, 2022.
9. ^ NSPS Program:
   • First enacted: 1970 CAA amendments, Pub.50. 91–604 § 4.
   • Location in statute: CAA § 111, 42 U.s.a.C. § 7411.
   • Major regulations: forty CFR 60.
   • EPA pages: "NSPS Regulations". November 25, 2022.
10. ^ "NSR Regulatory Actions". EPA. December 9, 2022.
11. ^ Acid Rain Program:
    • First enacted: 1990 CAA amendments, Pub.L. 101–549 § 401.
    • Location in statute: CAA Title 4-A, 42 U.S.C. ch. 85, subch. IV-A.
    • Major regulations: twoscore CFR 72 through 40 CFR 78.
    • EPA pages: "Clean Air Markets". August 12, 2022. "Acid Pelting Programme". August 21, 2022. "Acid Rain". December 2, 2022.
12. ^ "ARP Progress Reports". EPA.
13. ^ Ozone Layer Protection Programme:
    • Beginning enacted: 1990 CAA amendments, Pub.Fifty. 101–549 § 601.
    • Location in statute: CAA Title VI, 42 The statesC. ch. 85, subch. Half-dozen.
    • Major regulations: forty CFR 72 through xl CFR 82.
    • EPA pages: "Ozone Layer Protection". Feb 15, 2022. "Ozone Layer Protection under the CAA". July 14, 2022.
14. ^ Mobile Source Programs
    • First enacted: Motor Vehicle Air Pollution Control Human action of 1965, Pub.L. 89–272 § 101.
    • Location in statute: CAA Title Two, 42 UsC. ch. 85, subch. II.
    • Major regulations: 40 CFR 85, twoscore CFR 86, 40 CFR 87, xl CFR 89, 40 CFR 1039, 40 CFR 1048, 40 CFR 1054), 40 CFR 1051), 40 CFR 1068.
    • EPA pages: "Regulations for Emissions from Vehicles and Engines". April fifteen, 2022. "Regulations for Onroad Vehicles and Engines". August 10, 2022. "Regulations for Smog, Soot, and Other Air Pollution from Passenger Cars & Trucks". September 9, 2022. "Regulations for Smog, Soot, and Other Air Pollution from Commercial Trucks & Buses". September 12, 2022. "Regulations for Smog, Soot, and Other Air Pollution from Not-Electric Motorcycles". September 22, 2022. "Regulations for Nitrogen Oxide Emissions from Shipping". September 28, 2022. "Regulations for Atomic number 82 Emissions from Shipping". September nine, 2022. "Regulations for Emissions from Locomotives". September 13, 2022. "Voluntary Programs to Reduce Mobile Source Pollution". June sixteen, 2022.
15. ^ "Federal Test Procedure Revisions". EPA. October 22, 1996. Archived from the original on September 14, 2009. Retrieved October 3, 2009.
16. ^ "Regulatory Announcement: EPA Problems New Test Methods for Fuel Economy Window Stickers". EPA. December 2006. EPA 420-F-06-069. Fact sheet. Archived from the original on September 7, 2008. Retrieved July 16, 2022.
17. ^ "Welcome to Your MPG!". US Department of Free energy and EPA. Archived from the original on September xiii, 2022. Retrieved October 21, 2022.
18. ^ Dave Vanderwerp (August 2009). "The Truth About EPA City / Highway MPG Estimates". Car and Driver. Archived from the original on August 21, 2022. Retrieved August xix, 2022. Just 18 of the EPA's 17,000 employees work in the automobile-testing department in Ann Arbor, Michigan, examining 200 to 250 vehicles a year, or roughly 15 percent of new models. As to that other 85 percent, the EPA takes automakers at their word—without any testing-accepting submitted results as accurate.
19. ^ Chuck Squatriglia (November 17, 2022). "Honda Finds EVs a Perfect Fit | Autopia". Wired. Archived from the original on March 7, 2022. Retrieved March 12, 2022.
20. ^ Fuel Controls Programs:
    • First enacted: Air Quality Human action of 1967, Pub.Fifty. 90–148 § 210.
    • Location in statute: CAA § 211, 42 U.S.C. § 7545.
    • Major regulations: 40 CFR 1090.
    • EPA pages: "Final Rulemaking: Streamlining and Consolidating of Existing Gasoline and Diesel Fuel Programs". Oct vii, 2022. "Gasoline Standards". April 8, 2022. "Diesel fuel Fuel Standards". Apr viii, 2022. "Renewable Fuel Standard Program". April viii, 2022.
21. ^ Bridbord, Kenneth; Hanson, David (August 2009). "A Personal Perspective on the Initial Federal Health-Based Regulation to Remove Lead from Gasoline". Ecology Health Perspectives. 117 (8): 1195–1201. doi:ten.1289/ehp.0800534. PMC2721861. PMID 19672397.
22. ^ 40 CFR 51, twoscore CFR 52
23. ^ 36 FR 15486, 37 FR 19807)
24. ^ Garrett & Winner. "Affiliate 4. Nonattainment". ELR.
25. ^ Section 127, adding CAA Title I Part C, codification at 42 U.S.C. ch. 85, subch. I. 40 CFR 52.21
26. ^ ^{a b} McCarthy, James (February 25, 2022). "Clean Air Act: A Summary of the Act and its Major Requirements". Washington, DC: Congressional Inquiry Service. RL30853.
27. ^ EPA (Feb 1998). "Air Pollution Operating Allow Program Update: Primal Features and Benefits." Document no. EPA/451/K-98/002. p. 1.
28. ^ Monitoring and Enforcement EPA pages: "CAA Compliance Monitoring". EPA. July 17, 2022. , "Air Enforcement". May 3, 2022. , "Air Enforcement Policy, Guidance and Publications". May 3, 2022. , "Enforcement Information and Results". May 3, 2022.
29. ^ "Fact Sheet: Clean Air Human activity Permitting for Greenhouse Gas Emissions–Last Rules" (PDF). EPA. December 23, 2022.
30. ^ ^{a b c d east} John Bachmann, David Calkins, Margo Oge. "Cleaning the Air We Exhale: A Half Century of Progress." EPA Alumni Association. September 2022.
31. ^ "Greenhouse Gas Reporting Plan". EPA. October 22, 2022.
32. ^ "Risk Cess". EPA. August 24, 2022.
    "History of Risk at EPA". Risk Assessment. EPA. August 24, 2022.
33. ^ Pub.Fifty. 101–549 § 303. Not codified.
34. ^ Regional Brume Program:
    • Outset enacted: 1977 Amendments, Pub.L. 95–95 § 128, 1990 Amendments, Pub.50. 101–549 § 816.
    • Location in statute: 42 United states of americaC. § 7491, 42 United states of americaC. § 7492.
    • Major regulations: xl CFR 51, Subpart P.
    • EPA Pages: "Visibility and Regional Haze". May 4, 2022. .
35. ^ • "Interstate Air Pollution Transport". EPA. Feb 23, 2022.
    • Shouse, Kate C. (August thirty, 2022). "The Clean Air Deed's Adept Neighbor Provision: Overview of Interstate Air Pollution Control" (PDF). Congressional Inquiry Service. R45299.
    • "Clean Air Interstate Rule (Annal)". EPA. February 21, 2022.
36. ^ 42 U.s.C. § 7410(a)(two)(D)(i)(I)/
37. ^ "Emissions During Periods of Startup, Shutdown, & Malfunction (SSM)". Air Quality Implementation Plans. EPA. September 30, 2022. Guidance Memorandum: Withdrawal of the Oct nine, 2022, Memorandum. EPA is returning to its 2022 policy explaining that Country Implementation Plan provisions that provide exemptions from air emissions limits during periods of startup, shutdown and malfunction (SSM) or that provide affirmative defense force provisions are not consequent with the Clean Air Deed and would non generally exist approvable.
38. ^ ^{a b} Orford, Adam (2021). "The Make clean Air Act of 1963: Postwar Environmental Politics and the Debate Over Federal Power". Hastings Environmental Police force Journal. 27 (two): one–77. ISSN 1080-0735. Retrieved April 26, 2022.
39. ^ Bailey, Christopher J. (1998). Congress and Air Pollution. Manchester University Press.
40. ^ ^{a b} Stern, Arthur C. (1982). "History of Air Pollution Legislation in the United States". Journal of the Air Pollution Control Association. 32 (1): 44–61. doi:ten.1080/00022470.1982.10465369. PMID 7033323.
41. ^ "The Air Quality Act of 1967". Journal of the Air Pollution Command Association. eighteen:two (2): 62–71. 1968. doi:10.1080/00022470.1968.10469096. PMID 5637413.
42. ^ ^{a b c}  This commodity incorporates public domain material from the United States Regime document: "History of the Clean Air Act, U.Due south. Environmental Protection Bureau"."History of the Make clean Air Act". Environmental Protection Agency. August 8, 2022. Retrieved August 23, 2022.
43. ^ EPA Alumni Association: William Ruckelshaus in a 2022 interview discusses his kickoff-term efforts at implementing the Clean Air Act of 1970, Video, Transcript (see p14).
44. ^ Clean Air Deed Amendments of 1977, P.L. 95-95, 91 Stat. 685, Baronial 7, 1977.
45. ^ Erstwhile Deputy Administrator Hank Habicht talks nigh management at EPA. An Interview with Hank Habicht Video, Transcript (see p6). Dec 21, 2022.
46. ^ Turner, James Morton; Isenberg, Andrew C. (2018). The Republican Reversal: Conservatives and the Environment from Nixon to Trump. Harvard Academy Press. pp. 119–120. ISBN978-0674979970.
47. ^ Clean Air Deed Amendments of 1990, P.L. 101-549, 104 Stat. 2399, Nov 15, 1990.
48. ^ EPA Alumni Association: EPA Administrator William Thousand. Reilly describes why passage of the 1990 Make clean Air Human action amendments was vitally of import. Reflections on U.s. Environmental Policy: An Interview with William Grand. Reilly Video, Transcript (run into p10).
49. ^ "Early Implementation of the Clean Air Act of 1970 in California." EPA Alumni Association. Video, Transcript (come across p. half dozen). July 12, 2022.
50. ^ "Early Implementation of the Clean Air Act of 1970 in California." EPA Alumni Association. Video, Transcript. July 12, 2022.
51. ^ "Shifting Gears: The Federal Government'southward Reversal on California'south Make clean Air Act Waiver" (PDF). American Constitution Society. February xi, 2022. Archived from the original on February 23, 2022. Retrieved September xix, 2022.
52. ^ Liptak, Kevin (September 18, 2022). "Trump revokes waiver for California to set higher automobile emissions standards". CNN. Retrieved September eighteen, 2022.
53. ^ Davenport, Carol (September xx, 2022). "California Sues the Trump Administration in Its Escalating War Over Auto Emissions". The New York Times . Retrieved September 20, 2022.
54. ^ Aldy, Joseph E.; Auffhammer, Maximilian; Cropper, Maureen; Fraas, Arthur; Morgenstern, Richard (2022). "Looking Back at 50 Years of the Make clean Air Act". Journal of Economic Literature. 60 (1): 179–232. doi:10.1257/jel.20201626. ISSN 0022-0515.
55. ^ EPA (2011)."The Benefits and Costs of the Make clean Air Act from 1990 to 2020. Final Study." archived (also known equally the "2d Prospective Study." archived)
56. ^ Mui, Simon; Levin, Amanda (May 5, 2022). "Clearing the Air: The Benefits of the Clean Air Act". New York, NY: Natural Resources Defense Council.
57. ^ Ross, Kristie; Chmiel, James F.; Ferkol, Thomas (November 2022). "The impact of the Clean Air Air conditioning t". The Periodical of Pediatrics. 161 (v): 781–786. doi:x.1016/j.jpeds.2012.06.064. ISSN 0022-3476. PMC4133758. PMID 22920509. Isen, Adam; Rossin-Slater, Maya; Walker, Due west. Reed (May one, 2022). "Every Breath You Take—Every Dollar You'll Brand: The Long-Term Consequences of the Make clean Air Act of 1970". Journal of Political Economy. 125 (iii): 848–902. CiteSeerXten.1.1.589.9755. doi:10.1086/691465. ISSN 0022-3808. S2CID 222433000.
58. ^ "The Clean Air Act". Cambridge, MA: Union of Concerned Scientists. February 1, 2022.
59. ^ "Ecology regulations drove steep declines in U.Due south. factory pollution". Berkeley News. August 9, 2022. Retrieved August 11, 2022.
60. ^ Shapiro, Joseph South.; Walker, Reed (2018). "Why is Pollution from U.Southward. Manufacturing Declining? The Roles of Environmental Regulation, Productivity, and Merchandise". American Economic Review. 108 (12): 3814–3854. doi:10.1257/aer.20151272. ISSN 0002-8282.
61. ^ "The Important, Yet Express, Role of State Ecology Deportment". Westlaw . Retrieved November 11, 2022.
62. ^ Brannon, Valerie C.; Cole, Jared P. (September 19, 2022). Chevron Deference: A Primer (PDF). Congressional Research Service. R44954.
63. ^ Bressman, Lisa Schultz (2002). "Disciplining Delegation Later Whitman v. American Trucking Assns". Cornell Constabulary Review. 87 (52): 452–485.
64. ^ Greenhouse, Linda (April iii, 2007). "Justices Say E.P.A. Has Ability to Deed on Harmful Gases". The New York Times . Retrieved November ane, 2022.
65. ^ Kovacs, William (Apr ii, 2022). "Massachusetts 5. EPA: After thirteen years, it's fourth dimension for climate policy review". The Hill . Retrieved November ane, 2022.
66. ^ Brody, David R. (2012). "American Electric Power Co. 5. Connecticut" (PDF). Harvard Environmental Constabulary Review. 36: 297–304.
67. ^ "Supreme Court Ruling Backs Nigh EPA Emission Controls". The Wall Street Periodical. June 23, 2022. Retrieved July ane, 2022.
68. ^ Liptak, Adam (June 29, 2022). "Supreme Courtroom Blocks Obama'southward Limits on Power Plants". The New York Times.
69. ^ Liptak, Adam (Oct 29, 2022). "Supreme Court to Hear Instance on E.P.A.'due south Power to Limit Carbon Emissions". The New York Times.
70. ^ John Bachmann, David Calkins, Margo Oge. "Cleaning the Air We Exhale: A One-half Century of Progress." EPA Alumni Association. September 2022. pp. 32–33.
71. ^ "Transboundary Air Pollution". EPA. March 27, 2022.
72. ^ "Air Pollution: Electric current and Future Challenges". EPA. September 23, 2022.
73. ^ Miranda, Marie Lynn; Edwards, Sharon E.; Keating, Martha H.; Paul, Christopher J. (April 18, 2022). "Making the Environmental Justice Grade: The Relative Burden of Air Pollution Exposure in the United States". International Periodical of Ecology Research and Public Health. eight (half-dozen): 1755–1771. doi:10.3390/ijerph8061755. ISSN 1661-7827. PMC3137995. PMID 21776200.
74. ^ Massey, Rachel (2004). "Ecology Justice: Income, Race, and Health" (PDF). Tufts University Global Evolution And Surroundings Institute.
75. ^ ^{a b} EPA (2002). "Advancing Environmental Justice Through Pollution Prevention" (PDF). Report developed from the National Environmental Justice Advisory Quango Meeting of December 9–13, 2002.

External links

• EPA Enforcement and Compliance History Online
• EPA Alumni Association Oral History Video "Early on Implementation of the Make clean Air Deed of 1970 in California"

This page was last edited on 7 March 2022, at 23:46

Source: https://wiki2.org/en/Clean_Air_Act_(United_States)

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