Section 238.310 - Minimum service retirement allowance(1) Notwithstanding any other provision of this chapter, the service retirement allowance of a member who has 15 or more years of creditable service shall be not less than $100 a month, computed under the nonrefund plan: (a) For a member who retires and begins receiving a service retirement allowance before or on reaching the age of 65 years, on the basis of retirement at the age of 65 years.(b) For a member who retires and begins receiving a service retirement allowance after reaching the age of 65 years, on the basis of age reached at retirement.(2) Any member who receives a service retirement allowance calculated under the provisions of this section shall receive the retirement benefit in the form of a lump sum amount as provided in ORS 238.315. Formerly 237.200; 2001 c.945 §85