Walter L. Mazan, 69, a retired staff member of the House Committee on Public Works and Transportation and a former assistant secretary of transportation for public affairs, died of congestive heart failure Jan. 14 at Fairfax Hospital.

Mr. Mazan, who lived in Falls Church, was born in Rutland, Vt., and served as an Army Air Forces pilot during World War II. He was a graduate of the University of Vermont and received a law degree from Southern Colorado State University.

From 1951 to 1957, he was director of civil defense for the State of Vermont and special assistant to Vermont Gov. Lee Emerson. He came to Washington in 1957, and served in a variety of capacities in the Executive Office of the President, including director of the office of liaison with the Office of Emergency Preparedness.

He was named assistant secretary of transportation for public affairs in 1969 and served in that capacity for a year. He then became executive director of the President's Council on Children and Youth.

In 1973 and 1974, Mr. Mazan worked for several private companies as a specialist on international technology, economics and East-West trade. He joined the staff of the House of Representatives in 1975 and served there until retiring in 1985.

Survivors include his wife, Lee Duffy Mazan of Falls Church; four children, Walter L. "Duffy" Mazan II of Arlington, Lori Mazan and Michelle Mazan Burrows, both of San Francisco, and Michael Mazan of Reston; and three sisters, Jane McNeil and Val Morrello of Rutland, and Stephanie Luciani of Bethesda.