Washington Revised Code Title 41. Public Employment, Civil Service, and Pensions § 41.35.180. Service credit--Computation

(i) If a member in an eligible position for each month of the period from September through August of the following year does not meet the hours requirements of (a) of this subsection, the member is entitled to one-half service credit month for each month of the period if he or she earns earnable compensation for at least six hundred thirty hours but less than eight hundred ten hours during that period, and is employed nine months of that period;

(ii) A member employed in an eligible position for at least five months of a six-month period between September through August of the following year who earns earnable compensation for six hundred thirty or more hours within the six-month period will receive a maximum of six service credit months for the school year, recorded as one service credit month for each month of the six-month period;

(iii) In all other instances, a member in an eligible position is entitled to service credit months as follows: