(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]