Chapter 401.1 Apr 2026

This section is a technical standard for building ventilation.

In the context of the Americans with Disabilities Act (ADA), Section 401.1 defines the .

It requires anyone seeking a federal license or permit for an activity that may result in a discharge into U.S. waters to obtain a Water Quality Certification from the state or tribe where the discharge originates. Chapter 401.1

The provisions of Chapter 4 apply where required by Chapter 2 (Scoping) or where specifically referenced elsewhere in the standards.

It ensures that building paths, ramps, and elevators meet minimum accessibility requirements. 4. U.S. Foreign Affairs Manual (9 FAM 401.1) This section is a technical standard for building

The EPA's 401 Handbook provides an in-depth look at state and tribal authorities. 2. International Mechanical Code (IMC) Section 401.1

This is often cited as "401" or "401 Certification" and is one of the most significant environmental regulations in the U.S.. waters to obtain a Water Quality Certification from

23.1-401.1. Constitutionally protected speech - Virginia Law