Centennial Volunteer Challenge Coins The National Park Service’s centennial year is here, and we want to encourage everyone to take part in the celebration! We invite people of all ages to find their park and discover the national parks in their community through volunteerism. Registered volunteers who contribute 201.6 hours of service between January 1, 2016 and December 31, 2016 can earn a Centennial Volunteer Challenge Coin! How it Works: Criteria Recipient(s) must be registered national park volunteers (youth, adults, groups). Centennial Volunteer Challenge Coin are issued for service hours served between January 1, 2016 and December 31, 2016. Awards are issued for volunteer service only. Court-ordered community service does not qualify. Volunteers must track their own hours and provide dates, hours served, and a brief description of the service provided. Service must be approved and verified by the park or program volunteer manager/coordinator. Eligibility Only hours served during the 12-month period of the centennial year will count towards the award. The Award A custom-made, antique bronze coin, featuring a raised image of the NPS volunteer logo on one side and the 2016 NPS centennial logo on the opposite side. To learn more about volunteering with the National Park Service and to get started, visit Volunteer.gov or Find a Park.