Chapter 401.1 Apr 2026

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

Activities such as filling or excavating wetlands, relocating streams, or constructing bridges/roadways over water typically require this certification. Chapter 401.1

Chapter 4 (which includes 401.1) governs the ventilation of occupied spaces . The provisions of Chapter 4 apply where required

It ensures that building paths, ramps, and elevators meet minimum accessibility requirements. 4. U.S. Foreign Affairs Manual (9 FAM 401.1) Chapter 401.1