US HB6896

Public buildings in the District of Columbia cannot be demolished (in whole or in part) or substantially altered without express Congressional approval

Any site approved for demolition must have an approved and finalized construction plan before demolition can proceed

"Substantial alteration" is defined as changes affecting structural integrity, significantly changing historical character, or exceeding thresholds in 40 U.S.C. § 3307

Amends 40 U.S.C. § 8722 to expand National Capital Planning Commission oversight to include substantial alterations and architectural integrity considerations

Includes a severability clause ensuring remaining provisions remain in effect if any portion is held invalid