The ARRL is sponsoring a year-long activity to help celebrate the 100th anniversary of the U.S. national park system. The "National Parks on the Air" program, or NPOTA, runs from January 1 to December 31, 2016, according to the ARRL Letter.
The program will be similar to other "OTA" programs run by various groups, offering separate awards to "activators," who operate from within national parks and other sites administered by the National Park Service, and to "chasers," who contact a certain number of "activators." For the purposes of this program, acceptable sites include not only national parks but also national battlefields, historic sites, memorials, preserves, reserves, rivers, seashores, national scenic trails and other NPS-administered locations. See the ARRL website <http://www.arrl.org/npota-rules> for complete details and program rules.