• 24 CFR Part 50 – HUD NEPA implementing regulations
• 24 CFR Part 51 – HUD regulations on Noise, Explosive and Flammable Hazards, and Airport Clear Zones
• 24 CFR Part 55 – HUD regulations on Floodplain Management and Wetlands
• 24 CFR Part 58 – HUD Environmental Review Procedures for Responsible Entities

Regulations and guidance for each environmental law or authority, such as the Historic Preservation Act and the Endangered Species Act, can be found on the HUD Exchange’s page on the related laws and authorities

Notices that interpret a related environment law or authority, such as the Historic Preservation Act and the Endangered Species Act, can be found on the HUD Exchange’s page on the related laws and authorities

Guidance
The HUD Exchange has guidance and worksheets for compliance with the National Environmental Policy Act and related laws and authorities.