USCG Seagoing Buoy Tender
Overview
 
The Seagoing Buoy Tender is a type of U.S. Coast Guard cutter
United States Coast Guard Cutter
Cutter is the term used by the United States Coast Guard for its commissioned vessels. A Cutter is or greater in length, has a permanently assigned crew, and has accommodations for the crew to live aboard...

 originally designed to service aids to navigation, throughout the waters of the United States, and wherever U.S. shipping interests require. The Coast Guard has maintained a fleet of seagoing buoy tenders dating back to its origins in the U.S. Light House Service. These ships originally were designated with the hull classification symbol
Hull classification symbol
The United States Navy, United States Coast Guard, and United States National Oceanic and Atmospheric Administration use hull classification symbols to identify their ship types and each individual ship within each type...

 WAGL, but in 1965 the designation was changed to WLB, which is still used today.

Two classes of the WLB cutters have been produced.
 
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