36 U.S.C. § 125
National Grandparents Day
The President is requested to issue each year a proclamation—
(1)
designating the first Sunday in September after Labor Day as National Grandparents Day; and
(2)
calling on the people of the United States and interested groups and organizations to observe National Grandparents Day with appropriate ceremonies and activities.
( Pub. L. 105–225 , Aug. 12, 1998 , 112 Stat. 1259 .)