Cape Vincent is nested at the National Defense Reserve Fleet, Beaumont, Texas, in ROS-5 status, with a 10-man maintenance crew on board.

The ten-person ROS crew performs continuous maintenance in order to maintain the vessel in class with the American Bureau of Shipping and fully certificated by the USCG.

Within one month of entering the RRF, on 9 September 1994, the Cape Vincent loaded cargo at Wilmington, North Carolina, and departed for Port-au-Prince, Haiti.

Cape Vincent supported Operation Uphold Democracy, a peace-keeping mission, for 104 days before returning to Beaumont, Texas.

Cape Vincent surpassed this record, activating in 1.8 days for a humanitarian relief effort to Central America in response to the damage caused by Hurricane Mitch.

The Cape Vincent was activated on 17 January 2003 for Operation Iraqi Freedom and loaded cargo from the 4th Infantry Division at the Port of Beaumont.