20 C.F.R. § 422.901
The regulations in this subpart describe the process we will follow when we decide whether to ban you from entering our offices. Due to increasing reports of threats to our personnel and the public, we are taking steps to increase the level of protection we provide to our personnel and to the public. The purpose of this subpart is to inform the public and our personnel of the conduct that will subject an individual to a ban and the procedures we will follow when banning an individual from entering our offices. We expect that the regulations will result in a safer environment for our personnel and the public who visit our facilities, while ensuring that our personnel can continue to serve the American people with as little disruption to our operations as possible.
20 C.F.R. §422.901