Looks like they quietly took the message down. For posterity, it said:
> ⓘ Restricted-Access Federal Facility, Effective July 7, 2025
>
> Effective July 7, 2025, the National Archives at College Park, MD, will become a restricted-access federal facility with access only for visitors with a legitimate business need. It will no longer be open to the general public. Security officers will enforce these restrictions, and your cooperation is appreciated.
> ⓘ Restricted-Access Federal Facility, Effective July 7, 2025
>
> Effective July 7, 2025, the National Archives at College Park, MD, will become a restricted-access federal facility with access only for visitors with a legitimate business need. It will no longer be open to the general public. Security officers will enforce these restrictions, and your cooperation is appreciated.