Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart AAAA - Subpart AAAA—National Emission Standards for Hazardous Air Pollutants: Municipal Solid Waste Landfills

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

WHAT THIS SUBPART COVERS

§ 63.1930 - What is the purpose of this subpart?

§ 63.1935 - Am I subject to this subpart?

§ 63.1940 - What is the affected source of this subpart?

§ 63.1945 - When do I have to comply with this subpart?

§ 63.1947 - When do I have to comply with this subpart if I own or operate a bioreactor?

§ 63.1950 - When am I no longer required to comply with this subpart?

§ 63.1952 - When am I no longer required to comply with the requirements of this subpart if I own or operate a bioreactor?

STANDARDS

§ 63.1955 - What requirements must I meet?

§ 63.1957 - Requirements for gas collection and control system installation and removal.

§ 63.1958 - Operational standards for collection and control systems.

§ 63.1959 - NMOC calculation procedures.

§ 63.1960 - Compliance provisions.

§ 63.1961 - Monitoring of operations.

§ 63.1962 - Specifications for active collection systems.

GENERAL AND CONTINUING COMPLIANCE REQUIREMENTS

§ 63.1964 - How is compliance determined?

§ 63.1965 - What is a deviation?

§ 63.1975 - How do I calculate the 3-hour block average used to demonstrate compliance?

NOTIFICATIONS, RECORDS, AND REPORTS

§ 63.1981 - What reports must I submit?

§ 63.1982 - What records and reports must I submit and keep for bioreactors or liquids addition other than leachate?

§ 63.1983 - What records must I keep?

OTHER REQUIREMENTS AND INFORMATION

§ 63.1985 - Who enforces this subpart?

§ 63.1990 - What definitions apply to this subpart?

Appendix - Table 1 to Subpart AAAA of Part 63—Applicability of NESHAP General Provisions to Subpart AAAA