Del. Code tit. 29, § 2113

The Governor may issue annually a proclamation calling upon state officials to display the United States flag on all state and school buildings, and the people of this State to display the flag at their homes, lodges, churches and places of business and other suitable places, on the third Sunday in June, known as Father’s Day, as a public expression of love and reverence for the fathers of our State and as an inspiration for better homes and closer ties between fathers and the State.