(1) No later than October 16, 2020, a health carrier must submit to the authority the prescription drug cost and utilization data for calendar years 2018 and 2019, for each health plan it offered in Washington state in calendar years 2018 and 2019, following the guidelines set in the authority's applicable data submission guide.

(2) Beginning October 1, 2021, and no later than October 1st annually thereafter, a health carrier must submit to the authority the prescription drug cost and utilization data for the previous calendar year for each health plan it offered in Washington state, following the guidelines set in the authority's applicable data submission guide.

(3) A carrier may voluntarily submit the data described in subsection (1) of this section for any employer-sponsored, self-funded health plan; Taft-Hartley trust health plan; worker's compensation plan; medicare Part D plan; or medicare advantage plan it administers.

(4) The authority may assess fines for not complying with the requirements in this section. See WAC 182-51-1100.