 The WHCA, an agency of the White House Military Office, is headquartered at Joint Base Anacostia-Bolling and consists of six staff elements and seven organizational units.WHCA also has supporting detachments in Washington, D.C. and various locations throughout the United States of America.According to established protocol, good codewords are unambiguous words that can be easily pronounced and readily understood by those who transmit and receive voice messages by radio or telephone regardless of their native language.