California law requires written prescriptions for Schedule II, III, IV, and V controlled substances to be issued on tamper-resistant forms ordered from a state-approved security printer. The California Department of Justice maintains the official list of approved printers.

Quick answerA compliant paper form includes the security features required by Health and Safety Code section 11162.1, including a unique serialized number. AB 149-compliant forms also include the corresponding barcode.

Required security features

Health and Safety Code section 11162.1 identifies the features required on controlled substance prescription forms. These include:

  • A latent repetitive “void” pattern that becomes visible when the form is copied.
  • A “California Security Prescription” watermark on the back.
  • Chemical void protection intended to reveal alteration by chemical washing.
  • A feature printed with thermochromic ink.
  • An opaque writing area designed so writing disappears if the prescription is lightened.
  • A description of the security features printed on the form.
  • Quantity and refill checkboxes, required prescriber details, and the approved security printer’s identifying number.
  • A uniquely serialized number, plus batch and sequential numbering requirements.

Serial number and barcode

The California DOJ’s AB 149 guidance explains that compliant controlled substance paper prescription forms use a 12-character serial number and corresponding barcode. These elements help pharmacists and regulators identify and validate individual forms.

Why the approved printer matters

Controlled substance prescription forms must be obtained from a printer approved by the California DOJ. Approved printers are responsible for verifying prescriber licensure and prescribing privileges before printing forms and must follow controlled delivery and recordkeeping procedures.

Official sources

Important: This article provides general information and is not legal or regulatory advice. Requirements can change. Confirm current requirements with the California Department of Justice and the applicable licensing authority.