[Code of Federal Regulations] [Title 33, Volume 1] [Revised as of July 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 33CFR101.310] [Page 339] TITLE 33--NAVIGATION AND NAVIGABLE WATERS CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELANDSECURITY PART 101_MARITIME SECURITY: GENERAL--Table of Contents Subpart C_Communication(Port_Facility_Vessel) Sec. 101.310 Additional communication devices. (a) Alert Systems. Alert systems, such as the ship securityalert system required in SOLAS Chapter XI-2, Regulation 6(Incorporated by reference, see Sec. 101.115), may be usedto augment communication and may be one of the communication methodslisted in a vessel or facility security plan under part 104, 105, or106 of this subchapter. (b) Automated Identification Systems (AIS). AIS may be usedto augment communication, and may be one of the communication methodslisted in a vessel security plan under part 104 of this subchapter.See 33 CFR part 164 for additional information on AIS devicerequirements.