| A | General Provisions |
| B | Radon Emissions From Underground Uranium Mines |
| C | Beryllium |
| D | Beryllium Rocket Motor Firing |
| E | Mercury |
| F | Vinyl Chloride |
| G | (Reserved) |
| H | Emissions of Radionuclides Other Than Radon From Department of Energy Facilities |
| I | Radionuclide Emissions From Federal Facilities Other Than Nuclear Regulatory Commission Licensees and Not Covered by Subpart H |
| J | Equipment Leaks (Fugitive Emission Sources) of Benzene |
| K | Radionuclide Emissions from Elemental Phosphorus Plants |
| L | Benzene Emissions from Coke By-Product Recovery Plants |
| M | Asbestos |
| N | Inorganic Arsenic Emissions From Glass Manufacturing Plants |
| O | Inorganic Arsenic Emissions From Primary Copper Smelters |
| P | Inorganic Arsenic Emissions From Arsenic Trioxide and Metallic Arsenic Production Facilities |
| Q | Radon Emissions From Department of Energy Facilities |
| R | Radon Emissions From Phosphogypsum Stacks |
| S | (Reserved) |
| T | Radon Emissions From the Disposal of Uranium Mill Tailings |
| U | (Reserved) |
| V | Equipment Leaks (Fugitive Emission Sources) |
| W | Radon Emissions From Operating Mill Tailings |
| X | (Reserved) |
| Y | Benzene Emissions From Benzene Storage Vessels |
| Z | (Reserved) |
| AA | (Reserved) |
| BB | Benzene Emissions From Benzene Transfer Operations |
| CC | (Reserved) |
| DD | (Reserved) |
| EE | (Reserved) |
| FF | Benzene Waste Operations |
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