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

July 16

1946  Pursuant to Executive Order 9083 and Reorganization Plan No. 3 the Bureau of Marine Inspection was abolished and became a permanent part of the Coast Guard.

The 82-foot patrol boats of Squadron One (RONONE) deploying from Subic Bay in the Philippines to the theater of operations in Vietnam. (U.S. Coast Guard)

1965  Coast Guard 82-foot patrol boats assigned to Division 12 of Coast Guard Squadron One (RONONE) departed Manila Bay on their own, bound for Vietnam and service with the Navy in Operation Market Time.  The cutters had been brought to the Philippines “piggy-backed” on board freighters.