41 C.F.R. § 102-74.390 : Public Contracts and Property Management — FEDERAL PROPERTY MANAGEMENT REGULATIONS SYSTEM — FEDERAL MANAGEMENT REGULATION — REAL PROPERTY —74 - FACILITY MANAGEMENT — CONDUCT ON FEDERAL PROPERTY —DISTURBANCES —74.390 - What is the policy concerning disturbances?

All persons entering in or on Federal property are prohibited from loitering, exhibiting disorderly conduct or exhibiting other conduct on property that-

(a) Creates loud or unusual noise or a nuisance;
(b) Unreasonably obstructs the usual use of entrances, foyers, lobbies, corridors, offices, elevators, stairways, or parking lots;
(c) Otherwise impedes or disrupts the performance of official duties by Government employees; or
(d) Prevents the general public from obtaining the administrative services provided on the property in a timely manner.

41 C.F.R. § 102-74.390