TriMet uses a "flat" fare system, with a single price (for each category of rider: adult, youth, senior or disabled) regardless of the distance of the trip.
An e-fare system named "Hop Fastpass" is being developed by TriMet, the City of Portland, and C-TRAN that will enable riders to pay with a fare card, near field communication-equipped smartphone, or credit card, using card readers on buses and train platforms [REF].