A call to Glacier National Park’s Superintendent Office was not returned Thursday afternoon.

"Biking is an important part of many people's Glacier experiences, particularly in the spring and fall, and we've received feedback over the past few years from multiple perspectives on this potential use," Glacier spokesperson Lauren Alley told the AP.

E-bikes are allowed on Department of the Interior lands, which include the National Parks, Bureau of Land Management and the Fish and Wildlife Service. It is not clear whether BLM or FWS have implemented the rule change.

Sean Sandau of Missoula has ridden an e-bike for about three years, mostly on hunting trips. He didn’t know there were regulations on the bicycles until around a year ago, so he stopped riding his bicycle and gifted it to his father.

“I thought that they were legal,” Sandau said Thursday. “When I found out that they were going to be, I reinvested and bought a new one.”

That bike, a Quiet Cat Apex, accompanied Sandau on a recent hunting trip near Ovando. On that trip, Sandau said a Fish and Game official approached him to tell him the e-bike wasn’t allowed.