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RCW 82.04.050 “Sale at retail”, “retail sale”
RCW 82.04.220 Business and occupation tax imposed.
RCW 82.08.020 Tax imposed -- Retail sales -- Retail car rental
RCW 82.12.020 Use tax imposed.
RCW 82.04.620 Exemptions -- Certain prescription drugs.
RCW 82.08.0281 Exemptions -- Sales of prescription drugs
RCW 82.08.925 Exemptions -- Dietary supplements (also see the special notice: Sales Tax Changes for Dietary Supplements).
RCW 82.12.925 Exemptions -- Dietary supplements
RCW 82.08.940 Exemptions -- Over-the-counter drugs for human use
RCW 82.12.940 Exemptions -- Over-the-counter drugs for human use
RCW 82.12.935 Exemptions -- Disposable devices used to deliver prescription drugs for human use
WAC 458-20-168 Hospitals, nursing homes, boarding homes, adult family homes and similar health care facilities.
WAC 458-20-224 Service and other business activities.
WAC 458-20-18801 Prescription drugs, prosthetic and orthotic devices, ostomic items, and medically prescribed oxygen.
