Chapter 401.1 Access

It establishes that a consular officer may issue a visitor visa even if an immigrant visa application is pending, provided they are satisfied the stay is temporary and consistent with B1/B2 classification. 5. Other Legal & Professional Chapters

It mandates that every occupied space be ventilated by natural means (per Section 402) or mechanical means (per Section 403).

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

23.1-401.1. Constitutionally protected speech - Virginia Law

Systems for hazardous exhaust or energy recovery must also comply with Chapter 5 of the IMC. 3. ADA Standards for Accessible Design (Section 401.1) It establishes that a consular officer may issue

This is often cited as "401" or "401 Certification" and is one of the most significant environmental regulations in the U.S..

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.