(1) Any member desiring to establish credit for services previously rendered, must present proof and make the necessary payments on or before June 30 of the fifth school year of membership. Payments covering all types of membership service credit must be made in a lump sum when due, or in annual installments. The first annual installment of at least twenty percent of the amount due must be paid before the above deadline date, and the final payment must be made by June 30th of the fourth school year following that in which the first installment was made. The amount of payment and the interest thereon, whether lump sum or installments, shall be made by a method and in an amount established by the department.
(2) A member who had the opportunity under chapter
41.32 RCW prior to July 1, 1969, to establish credit for active United States military service or credit for professional preparation and failed to do so shall be permitted to establish additional credit within the provisions of RCW
41.32.260 and
41.32.330. A member who was not permitted to establish credit pursuant to section 2, chapter 32, Laws of 1973 2nd ex. sess., for Washington teaching service previously rendered, must present proof and make the necessary payment to establish such credit as membership service credit. Payment for such credit must be made in a lump sum on or before June 30, 1974. Any member desiring to establish credit under the provisions of this subsection must present proof and make the necessary payment before June 30, 1974; or, if not employed on the effective date of this amendment, before June 30th of the fifth school year upon returning to public school employment in this state.
(3) After June 30th of the fifth school year of membership, any member desiring to establish credit for services previously rendered, must present proof and make the necessary payments under RCW
41.50.165(2) but prior to retirement.