Code of Federal Regulations > Title 24 > Part 51 - ENVIRONMENTAL CRITERIA AND STANDARDS

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Mar 23, 2023

Subpart A [§ 51.1 - § 51.4] - General Provisions

Subpart B [§ 51.100 - § 51.106] - Noise Abatement and Control

Subpart C [§ 51.200 - § 51.208] - Siting of HUD-Assisted Projects Near Hazardous Operations Handling Conventional Fuels or Chemicals of an Explosive or Flammable Nature

Subpart D [§ 51.300 - § 51.305] - Siting of HUD Assisted Projects in Runway Clear Zones at Civil Airports and Clear Zones and Accident Potential Zones at Military Airfields