Oregon and Washington state are ending a 35-year agreement to honor each other's permits for winter recreation areas.
Washington said its more expansive snow park program, which costs more, no longer matches Oregon's.
The Oregonian reports that the agreement ends Oct. 1.
Permits are required to park at cross-country ski, snow shoeing and sledding areas. Oregon also requires them at some downhill ski areas.
Washington charges $40 for an annual permit, $20 for a daily. Oregon charges $25 a year, $4 a day.
Washington uses the money to pay for its entire Snow Park program, including snow removal, trail grooming, sanitation, education programs and enforcement.
The Oregon Department of Transportation website says Oregon permits will still be honored in Idaho and California.