United States federal observances are days, weeks, months, or other periods designated by the United States Congress for the commemoration or other observance of various events, activities, or topics. These observances differ from Federal holidays in that Federal employees only receive a day free from work on holidays, not observances. Federal observances that are designated by Congress appear in Title 36 of the United States Code (36 U.S.C. § 101 et seq.). Below is a list of all observances so designated. Note that not all of the laws below require that the observance be declared, in some cases, such as 36 U.S.C. § 114, Congress simply requested the President to issue a proclamation of the observance.