From NPR.

National park passes may no longer be valid if they’re defaced or altered. The policy shift follows backlash over President Trump’s image on the card.

The America the Beautiful pass features side-by-side portraits of George Washington and President Trump. Some park-goers have responded by covering Trump’s face with protest stickers.

The Center for Biological Diversity is suing, noting that, by law, the cards should feature a winning photo of a national park. Officials with the Department of Interior say the new rule is simply meant to protect against fraud.