USCGC Pontchartrain was a Lake-class cutter belonging to the United States Coast Guard launched on 16 June 1928 and commissioned on 13 October 1928 .

[1] After 13 years of service in the Coast Guard, she was transferred to the Royal Navy as part of the Lend-Lease Act.

After commissioning in November 1928, Pontchartrain was homeported in Norfolk, Virginia and assigned to the Bering Sea Patrol.

[2] On 4 December 1940 Pontchartrain rescued the entire crew of the 70 foot tugboat Edwin Duke which was in danger of sinking in a storm south of Long Island.

[3] As part of the Lend-Lease Act she was transferred to the Royal Navy where she was renamed HMS Hartland (Y00) and commissioned on 30 April 1941.