Division - AIR RESOURCES PROTECTION
- Part 55 - AIR POLLUTION CONTROL (§§ 324.5501 — 324.5542)
- Part 57 - SMALL BUSINESS CLEAN AIR ASSISTANCE (§§ 324.5701 — 324.5708)
- Part 59 - AIR POLLUTION CONTROL FACILITY; TAX EXEMPTION (§§ 324.5901 — 324.5908)
- Part 61 - EMISSIONS FROM VESSELS (§§ 324.6101 — 324.6102)
- Part 63 - MOTOR VEHICLE EMISSIONS TESTING FOR WEST MICHIGAN (§§ 324.6301 — 324.6321)
- Part 65 - MOTOR VEHICLE EMISSIONS TESTING FOR SOUTHEAST MICHIGAN (§§ 324.6501 — 324.6539)