Operating in the western Atlantic, the Gulf of Mexico, and the Caribbean until 5 November, Robert H. McCard then transited the Panama Canal and joined the Pacific Fleet.
At the end of 1967, she was serving on "Yankee Station" in the Gulf of Tonkin.
In January and February 1968, she was on plane guard duty for Coral Sea (CV-43) in the Tonkin Gulf, participating in an emergency search and rescue mission on the east coast of Hainan Island.
In March she served as plane guard for Kitty Hawk (CVA-63) and Bon Homme Richard (CVA-31) in the Tonkin Gulf.
In April she provided naval gunfire support off South Vietnam, and on 10 May she departed Japan for return to the east coast of the United States and reassignment back to the Atlantic Fleet with a homeport at Naval Station Charleston, South Carolina.

Operating in NATO exercise "Silvertower" in the North Atlantic in September and October 1968, Robert H. McCard then put into port at Southampton.
Following overhaul at Charleston from December to April 1969, she operated off the Atlantic Coast and in the Caribbean until deploying to the Mediterranean in September.
She returned to Charleston from her six months with the 6th Fleet on 28 March 1970, and remained with the Atlantic Fleet for the duration of 1970 and four months of 1971.
On 15 April 1971, she sailed eastward from Charleston for another six months' service in the Mediterranean, returning on 16 October.
She stayed in Charleston for the remainder of 1971 and spent the first eight months of 1972 engaged in Atlantic and Caribbean operations.

Robert H. McCard entered NAVSTA Charleston on 6 September 1972 for a six-month overhaul, at the completion of which she returned to normal operations in the western Atlantic and Caribbean.
Operating in the western Atlantic, the Gulf of Mexico, and the Caribbean until 5 November, Robert H. McCard then transited the Panama Canal and joined the Pacific Fleet. At the end of 1967, she was serving on "Yankee Station" in the Gulf of Tonkin. In January and February 1968, she was on plane guard duty for Coral Sea (CV-43) in the Tonkin Gulf, participating in an emergency search and rescue mission on the east coast of Hainan Island. In March she served as plane guard for Kitty Hawk (CVA-63) and Bon Homme Richard (CVA-31) in the Tonkin Gulf. In April she provided naval gunfire support off South Vietnam, and on 10 May she departed Japan for return to the east coast of the United States and reassignment back to the Atlantic Fleet with a homeport at Naval Station Charleston, South Carolina.
Operating in NATO exercise "Silvertower" in the North Atlantic in September and October 1968, Robert H. McCard then put into port at Southampton. Following overhaul at Charleston from December to April 1969, she operated off the Atlantic Coast and in the Caribbean until deploying to the Mediterranean in September. She returned to Charleston from her six months with the 6th Fleet on 28 March 1970, and remained with the Atlantic Fleet for the duration of 1970 and four months of 1971. On 15 April 1971, she sailed eastward from Charleston for another six months' service in the Mediterranean, returning on 16 October. She stayed in Charleston for the remainder of 1971 and spent the first eight months of 1972 engaged in Atlantic and Caribbean operations.
Robert H. McCard entered NAVSTA Charleston on 6 September 1972 for a six-month overhaul, at the completion of which she returned to normal operations in the western Atlantic and Caribbean.
USS Robert H. McCard (DD-822)