Permits first cruises were conducted in Philippine waters during 1940-1941. The two-year period of peace time activity gave the submarine's crew valuable training for later war activity. The ship - commanded by Lieutenant Commander Adrian M. Hurst - conducted her first war patrol off the west coast of Luzon from 11–20 December 1941. From 22–27 December, she made a second patrol in the area. Permit embarked members of Admiral Thomas C. Hart's staff at Mariveles Bay on 28 December and evacuated them to the Netherlands' Submarine Base, Surabaya, Java, arriving on 6 February 1942. En route, she completed a third war patrol, scouting in waters of the southern Philippines. The submarine departed Surabaya for her fourth war patrol on 22 February, as the Japanese began to close on Java. On 19 February, got through to Corregidor, which was still holding out against the Japanese. On 13 March, Permit sank the scuttled PT-32 of Motor Torpedo Boat Squadron Three. It was now Permits turn to penetrate the blockade to the "Rock." She rendezvoused off Corregidor on the night of 15–16 March, took on board 40 officers and enlisted men, and landed her ammunition. She headed for repairs at her new base, Fremantle, Western Australia, after minor damage suffered eluding three enemy destroyers on 18 March. Permit departed Fremantle on 5 May, and until 11 June was engaged in her fifth war patrol off Makassar, Celebes Island and in the enemy shipping route stretching towards Balikpapan, Borneo. She made her sixth war patrol en route to Pearl Harbor - from 12 July-30 August - and shortly departed for the United States, entering Mare Island Navy Yard on 9 September for overhaul. She conducted her seventh war patrol off Honshū, Japan from 5 February-16 March 1943. Towards sunset on 8 March, she attacked a nine-ship convoy with two escorts. Two hits sent Hisashima Maru to the bottom. Permit departed Midway Island on 6 April for her eighth war patrol in the shipping lanes from the Mariana Islands to Truk Atoll, Caroline Islands, and after several encounters, returned to Pearl Harbor on 25 May. On 7 July, Permit launched two torpedoes which sank Banshu Maru Number 33. Just after midnight, she spotted a two-ship convoy headed for the Korean coast, and with a salvo of two torpedoes sank Showa Maru in five minutes. SS-178 also sank the Soviet small seine/oceanographic vessel "No.20" 7 July On 20 July, she joined and at Midway for the first wartime penetration into the Sea of Japan, to attack shipping carrying raw materials from Manchuria and Korea. After this highly successful patrol, Permit made her way viaDutch Harbor, Alaska, to Pearl Harbor, arriving on 27 July. On 23 August, she departed for photographic reconnaissance of several atolls in the Marshall Islands. Off Kwajalein, she evaded aerial bombs on 3 September and depth charges on 9 September. She made attacks on enemy vessels, damaging several, before returning to Pearl Harbor on 24 September. Her next war patrol was in the Caroline Islands, held from early-January - mid-March 1944. Her 12th war patrol was in the same region, on lifeguard duty in support of the air strikes on Truk. She remained on station from 7 May – 1 June. Permit commenced her 13th patrol with her departure from Majuro Atoll on 30 June, and ended it with her arrival at Brisbane, Australia on 13 August. On 21 September, she departed to relieve on lifeguard duty off Truk, and on 11 November ended her 14th and last war patrol at Pearl Harbor. After refit, she sailed for the United States on 29 January 1945, and entered the Philadelphia Navy Yard on 23 February. In mid-May, she sailed to the Submarine Base, New London, Connecticut, to serve as a schoolship until 30 October, when she entered Boston Naval Shipyard for inactivation. Permit decommissioned on 15 November 1945. Her name was stricken from the Naval Vessel Register on 26 July 1956; her hulk was sold for scrap to A.G. Schoonmaker, Inc., New York City on 28 June 1958.
Awards
Permit received ten battle stars for her World War II service.
