Editing Hull classification symbol (section)

=== United States Coast and Geodetic Survey ===

Like the U.S. Navy, the [[United States Coast and Geodetic Survey]] – a uniformed seagoing service of the [[United States Government]] and a predecessor of the [[National Oceanic and Atmospheric Administration]] (NOAA) – adopted a hull number system for its fleet in the 20th century. Its largest vessels, "Category I" [[Oceanography|oceanographic]] [[survey ship]]s, were classified as "ocean survey ships" and given the designation "OSS". Intermediate-sized "Category II" oceanographic survey ships received the designation "MSS" for "medium survey ship," and smaller "Category III" oceanographic survey ships were given the classification "CSS" for "coastal survey ship." A fourth designation, "ASV" for "auxiliary survey vessel," included even smaller vessels. In each case, a particular ship received a unique designation based on its classification and a unique hull number separated by a space rather than a hyphen; for example, the third Coast and Geodetic Survey ship named ''Pioneer'' was an ocean survey ship officially known as [[USC&GS Pioneer (OSS 31)|USC&GS ''Pioneer'' (OSS 31)]].<ref>[https://books.google.com/books?id=uYSPAAAAMAAJ&dq=Ocean+Survey+Ship+%28OSS%29+MSS+CSS&pg=PA3612 United States Department of State, ''United States Treaties and Other International Obligations, Volume 23, Part Four'', Washington, D.C.:U.S. Government Printing Office, 1972, p. 3612.]</ref><ref>{{Cite web |url=http://docs.lib.noaa.gov/rescue/cgs/011_pdf/CSC-0205.pdf |title=United States Department of Commerce, ''Annual Report of the Director of the Coast and Geodetic Survey for the Fiscal Year Ending June 30, 1964'', U.S. Government Printing Office, Washington, D.C.: 1964, pp. 3–5. |access-date=6 May 2014 |archive-url=https://web.archive.org/web/20130219015620/http://docs.lib.noaa.gov/rescue/cgs/011_pdf/CSC-0205.pdf |archive-date=19 February 2013 |url-status=dead }}</ref> The Coast and Geodetic Survey{{'}}s system persisted after the creation of NOAA in 1970, when NOAA took control of the Survey{{'}}s fleet, but NOAA later changed to its modern hull classification system.