system and uses distance-based fares; adult fares range from $3.25 to $5.75. Passengers are required to purchase a paper ticket, use a mobile ticket, or tap their ORCA card (and receive a valid permit to travel) before boarding trains. Sound Transit fare inspectors or police officers randomly board trains and check for valid proof-of-payment, issuing warnings or fines to passengers without valid proof-of-payment. Passengers using ORCA cards are charged the maximum fare from the station they are traveling from and are issued a permit to travel when they tap before boarding and, if necessary, receive a refund when they tap after boarding. Discounted fares are offered for youth, seniors and the disabled, and low-income riders qualifying for the ORCA Lift program. During the COVID-19 pandemic in 2020, fare collection for all Sound Transit services was suspended from March 21 to June 1. Fares on Link and Sounder were reintroduced on June 1 with a discounted rate of $2 for non-ORCA users on Sounder. Ridership statistics Rolling stock References External links S Line schedule N Line schedule Transportation in Seattle Transportation in King County, Washington Transportation in Snohomish County, Washington Transportation in Pierce County, Washington Commuter rail in the United States Passenger rail transportation in Washington (state) BNSF Railway lines Railway services introduced in 2000 2000 establishments in Washington (state)