Secure U.S. Capitol Act This bill directs the Architect of the Capitol to install permanent fencing around the perimeter of the U.S. Capitol, taking into account specified factors relating to safety, security, access, and overall design. The fencing must be installed by January 1, 2023. On January 7, 2021, in response to the previous day's events, razor wire fencing was erected to secure the perimeter of the U.S. Capitol; the fencing is to remain in place for 30 days, with possible extensions.