Based on the Coast Guard Historian’s timeline, https://www.history.uscg.mil/research/chronology/
With inspiration from Mike Kelso

June 7

1902  The Alaskan Game Law was  passed and it was to be enforced by the Revenue Cutter Service “on request” of the Secretary of Agriculture.  It was not effectively enforced by Coast Guard until 1925, however.

1924  Congress passed the Oil Pollution Act and the enforcement responsibility was assigned to the Coast Guard.

An over-the-horizon-IV cutter boat from Coast Guard Cutter Valiant transports people and their
belongings from St. Thomas to the cutter during Hurricane Irma relief efforts in the U.S. Virgin Islands Sept. 12, 2017. Valiant crewmembers transported more than 95 adults, children and pets that day. U.S. Coast Guard photo

2011  The Coast Guard awarded four firm fixed-price production contracts to deliver the first test boats for the seven-meter Cutter Boat Over-The-Horizon-IV (CB-OTH-IV) project.  The contracts were awarded to MetalCraft Marine U.S. (Clayton, New York), SAFE Boats International (Port Orchard, Washington), Silver Ships, Inc. (Theodore, Alabama), and William E. Munson Company (Burlington, Washington).  The Coast Guard planned to acquire up to 71 seven-meter CB-OTH-IVs.  The acquisition also included up to 20 boats for Customs and Border Protection and 10 boats for the U.S. Navy, for a total of up to 101 boats.  SAFE Boats won the competition.