For purposes of RCW 48.200.210 through 48.200.270, an entity, or an independent third party that contracts with an entity to conduct audits, must allow as evidence of validation of a claim:

(1) An electronic or physical copy of a valid prescription if the prescribed drug was, within fourteen days of the dispensing date:

(a) Picked up by the patient or the patient's designee;

(b) Delivered by the pharmacy to the patient; or

(c) Sent by the pharmacy to the patient using the United States postal service or other common carrier;

(2) Point of sale electronic register data showing purchase of the prescribed drug, medical supply, or service by the patient or the patient's designee; or

(3) Electronic records, including electronic beneficiary signature logs, electronically scanned and stored patient records maintained at or accessible to the audited pharmacy's central operations, and any other reasonably clear and accurate electronic documentation that corresponds to a claim.