6 U.S. Code § 913
6 U.S. Code § 913 is about Facility exercise requirements. It is under Part A (Port Security Grants; Training and Exercise Programs) of Subchapter I (Security Of United States Seaports) of Chapter 3 (Security And Accountability For Every Port) of Title 6 (Domestic Security) of the Code.
The Secretary of the Department in which the Coast Guard is operating shall require each high risk facility to conduct live or full-scale exercises described in section 105.220(c) of title 33, Code of Federal Regulations, not less frequently than once every 2 years, in accordance with the facility security plan required under section 70103(c) of title 46.