The U.S. Army Corps of Engineers (USACE) will waive day-use fees at its more than 2,400 USACE-operated recreation areas nationwide in recognition of National Public Lands Day, Sept. 29. This includes the 38 lakes located within the Tulsa District USACE. On this day, fees normally charged at boat launch ramps and swimming beaches will be waived. USACE does not charge entrance fees to its parks.