Pub. L. 105-225, tit. 36, subtit. II, pt. A, ch. 1, sec. 109
Father’s Day
§ 109. Father’s Day (a) Designation.—The third Sunday in June is Father’s Day. (b) Proclamation.—The President is requested to issue a proclamation— (1) calling on United States Government officials to display the flag of the United States on all Government buildings on Father’s Day; (2) inviting State and local governments and the people of the United States to observe Father’s Day with appropriate ceremonies; and (3) urging the people of the United States to offer public and private expressions of Father’s Day to the abiding love and gratitude they have for their fathers.