It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.
United States Code 42 USC 7401 - Congressional findings and declaration of purpose
42 USC 7402 - Cooperative activities
42 USC 7403 - Research, investigation, training, and other activities
42 USC 7404 - Research relating to fuels and vehicles
42 USC 7405 - Grants for support of air pollution planning and control programs
42 USC 7406 - Interstate air quality agencies; program cost limitations
42 USC 7407 - Air quality control regions
42 USC 7408 - Air quality criteria and control techniques
42 USC 7409 - National primary and secondary ambient air quality standards
42 USC 7410 - State implementation plans for national primary and secondary ambient air quality standards
42 USC 7411 - Standards of performance for new stationary sources
42 USC 7412 - Hazardous air pollutants
42 USC 7413 - Federal enforcement
42 USC 7414 - Recordkeeping, inspections, monitoring, and entry
42 USC 7415 - International air pollution
42 USC 7416 - Retention of State authority
42 USC 7417 - Advisory committees
42 USC 7418 - Control of pollution from Federal facilities
42 USC 7419 - Primary nonferrous smelter orders
42 USC 7420 - Noncompliance penalty
42 USC 7421 - Consultation
42 USC 7422 - Listing of certain unregulated pollutants
42 USC 7423 - Stack heights
42 USC 7424 - Assurance of adequacy of State plans
42 USC 7425 - Measures to prevent economic disruption or unemployment
42 USC 7426 - Interstate pollution abatement
42 USC 7427 - Public notification
42 USC 7428 - State boards
42 USC 7429 - Solid waste combustion
42 USC 7430 - Emission factors
42 USC 7431 - Land use authority
42 USC 7450 to 7459 - Repealed.
42 USC 7470 - Congressional declaration of purpose
42 USC 7471 - Plan requirements
42 USC 7472 - Initial classifications
42 USC 7473 - Increments and ceilings
42 USC 7474 - Area redesignation
42 USC 7475 - Preconstruction requirements
42 USC 7476 - Other pollutants
42 USC 7477 - Enforcement
42 USC 7478 - Period before plan approval
42 USC 7479 - Definitions
42 USC 7491 - Visibility protection for Federal class I areas
42 USC 7492 - Visibility
42 USC 7501 - Definitions
42 USC 7502 - Nonattainment plan provisions in general
42 USC 7503 - Permit requirements
42 USC 7504 - Planning procedures
42 USC 7505 - Environmental Protection Agency grants
42 USC 7505a - Maintenance plans
42 USC 7506 - Limitations on certain Federal assistance
42 USC 7506a - Interstate transport commissions
42 USC 7507 - New motor vehicle emission standards in nonattainment areas
42 USC 7508 - Guidance documents
42 USC 7509 - Sanctions and consequences of failure to attain
42 USC 7509a - International border areas
42 USC 7511 - Classifications and attainment dates
42 USC 7511a - Plan submissions and requirements
42 USC 7511b - Federal ozone measures
42 USC 7511c - Control of interstate ozone air pollution
42 USC 7511d - Enforcement for Severe and Extreme ozone nonattainment areas for failure to attain
42 USC 7511e - Transitional areas
42 USC 7511f - NO
42 USC 7512 - Classification and attainment dates
42 USC 7512a - Plan submissions and requirements
42 USC 7513 - Classifications and attainment dates
42 USC 7513a - Plan provisions and schedules for plan submissions
42 USC 7513b - Issuance of RACM and BACM guidance
42 USC 7514 - Plan submission deadlines
42 USC 7514a - Attainment dates
42 USC 7515 - General savings clause
42 USC 7521 - Emission standards for new motor vehicles or new motor vehicle engines
42 USC 7522 - Prohibited acts
42 USC 7523 - Actions to restrain violations
42 USC 7524 - Civil penalties
42 USC 7525 - Motor vehicle and motor vehicle engine compliance testing and certification
42 USC 7541 - Compliance by vehicles and engines in actual use
42 USC 7542 - Information collection
42 USC 7543 - State standards
42 USC 7544 - State grants
42 USC 7545 - Regulation of fuels
42 USC 7546 - Renewable fuel
42 USC 7547 - Nonroad engines and vehicles
42 USC 7548 - Study of particulate emissions from motor vehicles
42 USC 7549 - High altitude performance adjustments
42 USC 7550 - Definitions
42 USC 7551 - Omitted
42 USC 7552 - Motor vehicle compliance program fees
42 USC 7553 - Prohibition on production of engines requiring leaded gasoline
42 USC 7554 - Urban bus standards
42 USC 7571 - Establishment of standards
42 USC 7572 - Enforcement of standards
42 USC 7573 - State standards and controls
42 USC 7574 - Definitions
42 USC 7581 - Definitions
42 USC 7582 - Requirements applicable to clean-fuel vehicles
42 USC 7583 - Standards for light-duty clean-fuel vehicles
42 USC 7584 - Administration and enforcement as per California standards
42 USC 7585 - Standards for heavy-duty clean-fuel vehicles (GVWR above 8,500 up to 26,000 lbs.)
42 USC 7586 - Centrally fueled fleets
42 USC 7587 - Vehicle conversions
42 USC 7588 - Federal agency fleets
42 USC 7589 - California pilot test program
42 USC 7590 - General provisions
42 USC 7601 - Administration
42 USC 7602 - Definitions
42 USC 7603 - Emergency powers
42 USC 7604 - Citizen suits
42 USC 7605 - Representation in litigation
42 USC 7606 - Federal procurement
42 USC 7607 - Administrative proceedings and judicial review
42 USC 7608 - Mandatory licensing
42 USC 7609 - Policy review
42 USC 7610 - Other authority
42 USC 7611 - Records and audit
42 USC 7612 - Economic impact analyses
42 USC 7613 - Repealed.
42 USC 7614 - Labor standards
42 USC 7615 - Separability
42 USC 7616 - Sewage treatment grants
42 USC 7617 - Economic impact assessment
42 USC 7618 - Repealed.
42 USC 7619 - Air quality monitoring
42 USC 7620 - Standardized air quality modeling
42 USC 7621 - Employment effects
42 USC 7622 - Employee protection
42 USC 7623 - Repealed.
42 USC 7624 - Cost of vapor recovery equipment
42 USC 7625 - Vapor recovery for small business marketers of petroleum products
42 USC § 7625–1 - Exemptions for certain territories
42 USC 7625a - Statutory construction
42 USC 7626 - Authorization of appropriations
42 USC 7627 - Air pollution from Outer Continental Shelf activities
42 USC 7628 - Demonstration grant program for local governments
42 USC 7641 - Noise abatement
42 USC 7642 - Authorization of appropriations
42 USC 7651 - Findings and purposes
42 USC 7651a - Definitions
42 USC 7651b - Sulfur dioxide allowance program for existing and new units
42 USC 7651c - Phase I sulfur dioxide requirements
42 USC 7651d - Phase II sulfur dioxide requirements
42 USC 7651e - Allowances for States with emissions rates at or below 0.80 lbs/mmBtu
42 USC 7651f - Nitrogen oxides emission reduction program
42 USC 7651g - Permits and compliance plans
42 USC 7651h - Repowered sources
42 USC 7651i - Election for additional sources
42 USC 7651j - Excess emissions penalty
42 USC 7651k - Monitoring, reporting, and recordkeeping requirements
42 USC § -
42 USC 7651m - Enforcement
42 USC 7651n - Clean coal technology regulatory incentives
42 USC § -
42 USC 7661 - Definitions
42 USC 7661a - Permit programs
42 USC 7661b - Permit applications
42 USC 7661c - Permit requirements and conditions
42 USC 7661d - Notification to Administrator and contiguous States
42 USC 7661e - Other authorities
42 USC 7661f - Small business stationary source technical and environmental compliance assistance program
42 USC 7671 - Definitions
42 USC 7671a - Listing of class I and class II substances
42 USC 7671b - Monitoring and reporting requirements
42 USC 7671c - Phase-out of production and consumption of class I substances
42 USC 7671d - Phase-out of production and consumption of class II substances
42 USC 7671e - Accelerated schedule
42 USC 7671f - Exchange authority
42 USC 7671g - National recycling and emission reduction program
42 USC 7671h - Servicing of motor vehicle air conditioners
42 USC 7671i - Nonessential products containing chlorofluorocarbons
42 USC 7671j - Labeling
42 USC 7671k - Safe alternatives policy
42 USC § -
42 USC 7671m - Relationship to other laws
42 USC 7671n - Authority of Administrator
42 USC § -
42 USC 7671p - International cooperation
42 USC 7671q - Miscellaneous provisions
