On 11 February 1991, the warship embarked on another Coast Guard law enforcement mission off Central America. "Berkeley" began counternarcotics patrols off Baja California in mid-February; and, save for a 22 February visit to Puerto Quetzal, Guatemala, there she remained for the next five weeks. Returning to San Diego on 8 April for maintenance, the guided-missile destroyer then set out on a two-week Coast Guard law enforcement patrol on the 26th. This was followed in mid-May by a gunnery and missile exercise.