Retired Col. Roy G. DeVecchio, 70, an Army fiscal officer who supervised the Italian reparation program following World War II, died Thursday at Walter Reed Hospital. He had a respiratory ailment.

After receiving his Army commission in 1940, Col. DeVecchio served as fiscal officer at the Presidio in San Francisco, the Bermuda Base Command, and for the Mediterranean theater of operations in Naples, Italy.

In 1945, he was assigned as executive officer of the Army-Navy coordination group of the United Nations Conference in San Francisco.

Attached to the U.S. Embassy in Rome from 1945 to 1947, he supervised the Italian reparation program and was honored by the Italian government with a special commemorative medal for his work.

Col. DeVecchio later served as executive officer of the budget directorate in the Office of the Comptroller of the Army here, commanding officer of the Army Audit Agency at Fort Sam Houston, Tex., and as deputy comptroller of the Armed Forces Far East and 8th Army in Japan.

He was assigned to the Army chief of transportation for about five years here before transferring to the Army Materiel Command here in 1962. He retired in 1965.

Col. DeVecchio then became a management analyst assistant to the budget director of the Veterans Administration's department of medicine and surgery. He retired a second time in 1977.

He was born in California. A graduate of the University of Maryland, he also studied at the Harvard Business School.

Col. DeVecchio lived in Washington and was past president of the Spring Valley Wesley Heights Club of D.C. He also served as hospitality chairman of the Harvard Club of D.C.

His military decorations include the Legion of Merit and the Italian Merit of War Cross.

Survivors include his wife, Lois L., of Washington; two sons, R. Lindley, of Dumont, N.J., and Warren Jay, of Silver Spring, and a granddaughter.