Cal. Health and Safety Code § 127676

(a) The Legislature finds and declares that the State of California has a substantial public interest in the price and cost of prescription drugs. California is a major purchaser through the Public Employees’ Retirement System, the State Department of Health Care Services, the Department of General Services, the Department of Corrections and Rehabilitation, and other entities acting on behalf of a state purchaser. California also provides major tax expenditures through the tax exclusion of employer sponsored coverage and tax deductibility of coverage purchased by individuals, as well as tax deductibility of excess health care costs for individuals and families. (b) (1) It is the intent of the Legislature in enacting this chapter to provide notice and disclosure of information relating to the cost and pricing of prescription drugs in order to provide accountability to the state for prescription drug pricing. (2) It is further the intent of the Legislature to permit a manufacturer of a prescription drug to voluntarily make pricing decisions regarding a prescription drug, including any price increases. It is further the intent of the Legislature to permit purchasers, both public and private, as well as pharmacy benefit managers, to negotiate discounts and rebates consistent with existing state and federal law.