Hal H. Hale, 76, a retired trade organization official and former government transportation consultant, died of hepatitis Tuesday at Sibley Memorial Hospital.

Mr. Hale retired in 1968 after 13 years as an assistant to the vice president of the Association of American Railroads here. Before that, he had been executive secretary of the American Association of State Highway Officials from 1944 to 1954.

He was a congressional consultant on the Inter-American Highway in the mid-1940s, and was a 1951 delegate to the fifth Pan-American Highway Congress in Lima, Peru. He received a War Department citation for public service during World War II.

Mr. Hale was born in Morristown, Tenn., and earned a civil engineering degree at the University of Tennessee in 1924.

He worked as a city engineer for Knoxville, Tenn., and as a planner with the Tennessee Valley Authority before moving to Washington in 1941 and joining the American Society of Civil Engineers where he worked for three years.

His memberships included the Cosmos Club, the Fossils, the Civil Crew at Georgia Tech, and the American Society of Civil Engineers.

Mr. Hale belonged to Westmoreland Congregational Church in Bethesda.

He is survived by his wife, Mary, of the home in Bethesda; a daughter, Jane Sebold, of Philadelphia, and two grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Westmoreland Congregational Church Memorial Fund.