Updated information on pharmacist authority to administer vaccines
The Board wishes to advise licensees about important upcoming changes to pharmacist authority related to vaccine administration enacted by Assembly Bill 1503 (Berman, Chapter 196, Statutes of 2025). AB 1503 was recently signed by Governor Newsom and will take effect on January 1, 2026. Under the provisions established in AB 1503, pharmacist authority to independently initiate and administer vaccines for persons three years of age and older will transition to a standard of care practice model. Such an approach is consistent with other health care practitioners with similar practice authority.
In anticipation of this change, the Board strongly encourages pharmacists to begin the transition to a standard of care practice model for immunizations for patients three years old and older. The Board intends to use enforcement discretion during this intervening period.
The Board also reminds pharmacists that Business and Professions Code section 4052(a)(11) currently provides a pharmacist with the authority to administer immunizations to any person, regardless of age, pursuant to a protocol with a prescriber. This current authority will exist until January 1, 2026, when AB 1503 takes effect.
Note that while AB 1503 repeals current subdivision (a)(11) of section 4052, it also adds new subdivision (a)(12), which, effective as of January 1, 2026, provides general authority for a pharmacist to initiate, adjust, or discontinue drug therapy for a patient (which includes vaccine administration) under either (1) a collaborative practice agreement, or (2) under specified conditions, an order or authorization made by the patient’s prescriber. (See Stats. 2025, Ch. 196, Sec. 13 (AB 1503), effective January 1, 2026.)
Finally, as announced in a separate alert released on September 18, 2025, the Board reminds licensees about the following recent developments related to vaccines:
- In early September, the West Coast Health Alliance was launched to provide evidence-based unified recommendations for residents of California, Oregon, Washington, and Hawaii regarding who should receive immunizations.
- On September 17, the California Department of Public Health announced official immunization recommendations in accordance with this Alliance.
- Recent enactment of Assembly Bill 144 (Committee on Budget, Chapter 105, Statutes of 2025) provides authority for pharmacists to independently initiate and administer to individuals three years of age or older an immunization that, on January 1, 2025, had in effect an ACIP recommendation and that is recommended by the California Department of Public Health. This authority became effective on September 17, 2025, and provides separate and independent authority (complementing other current and forthcoming authorities) for pharmacists to administer vaccines.
- AB 144 also contains provisions related to Medi-Cal coverage of vaccines and immunizations. Learn more about Medi-Cal coverage of vaccines here.
Thank you for your commitment to California patients.
October 20, 2025
Details About This New Alliance
California, Oregon, Washington and Hawaii share a commitment to ensuring that public health recommendations are guided by safety, efficacy, transparency, access, and trust. The Alliance will help safeguard scientific expertise by ensuring that public health policies in these states are informed by trusted scientists, clinicians, and other public health leaders. Through this partnership, the these states will start coordinating health guidelines by aligning immunization recommendations informed by respected national medical organizations. This will allow residents to receive consistent, science-based recommendations they can rely on — regardless of shifting federal actions.
In the coming weeks, the Alliance will finalize shared principles to strengthen public confidence in vaccines and in public health. While each state will independently pursue strategies shaped by their unique laws, geographies, histories, and peoples, these shared principles will form the foundations of the Alliance. Importantly, these states affirm and respect Tribal sovereignty, recognizing that Tribes maintain their sovereign authority over vaccine services.