She spent five weeks of trials in the Puget Sound area, and then three weeks at Mare Island for checkout of the SUBROC missile system. Off the California coast in spring 1962, about west of the Golden Gate, she collided with the hull of the Matson freighter Hawaiian Citizen on 9 May, damaging both vessels, which caused a change of command. During late summer and early fall, Permit underwent shakedown in the San Diego area. After final acceptance trials in January 1963, she participated in a thorough evaluation of the SUBROC missile, and on 28 March, became the first submarine to successfully fire one. During 1964 and 1965, Permit engaged in more testing and training of an advanced nature.
