SJ Prio membership is valid for12 months from the registration date. You earn both Prio level points and other points throughout your membership year. Level points are earned on SJ train tickets and bistro purchases onboard. The total sum of level points earned throughout the membership year determine your membership level for the following year and are also included in the points you can spend. The sum of level points is returned to zero at the end of each membership year. Other points can be earned via our business partners. These points are valid during the calendar year in which they are earned plus a further two calendar years.