# 114.05 Definitions.The following definitions apply to this subchapter:*Approved* means approved by the Commandant unless otherwise stated.*Bridge* means a structure erected across navigable waters of the United States, and includes causeways, approaches, fenders, and other appurtenances thereto.*Coast Guard District Commander or District Commander* means an officer of the Coast Guard designated as such by the Commandant to command all Coast Guard activities within his or her district. (See part 3 of this chapter for descriptions of Coast Guard Districts.)*Commandant* means Commandant, U.S. Coast Guard, Department of Homeland Security, Washington, DC 20593.*Deputy Commandant for Operations* means the officer of the Coast Guard designated by the Commandant as the staff officer in charge of “Operations” (DCO), U.S. Coast Guard Headquarters.*District Office or Coast Guard District Office* means the Office of the Commander of a Coast Guard District.*Headquarters or Coast Guard Headquarters* means the Office of the Commandant, U.S. Coast Guard, Department of Homeland Security, Washington, DC 20593-7000.*Permit* means the license permitting construction of bridges and approaches thereto in or over navigable waters of the United States, issued under the rules and regulations in this subchapter.*Secretary* means the Secretary of Homeland Security or any person to whom he or she has delegated his or her authority in the matter concerned.*United States Coast Guard or Coast Guard* means the organization or agency established by the Act of January 28, 1915, as amended (14 U.S.C. 101).[USCG-2012-0306, 77 FR 37313, June 21, 2012, as amended by USCG-2020-0304, 85 FR 58278, Sept. 18, 2020]