6 Facts About National Park Service

1. The National Park Service discontinued its ban on disposable water bottles in August 2017.

2. In 2010, the National Park Service estimated that reducing bottled water could eliminate 6,000 tons of carbon emissions and 8 million kilowatt hours of electricity every year.

3. The National Park Service is responsible for 16 of the 19 World Heritage Sites in the United States.

4. The National Park Service generally has the authority to enforce any state law not covered already by federal laws under the Assimilative Crimes Act, 18 USC.

5. In 2012, the National Park Service reported that over 221,000 volunteers contributed about 6.4 million hours annually.

6. Since its inception in 1916, the National Park Service has managed each of the United States' national parks, which have grown in number over the years to 60.