# California — PDMP Mandatory Prescriber Check Requirements by State For California, mandate status is mandatory; drug schedules covered is Schedule II-IV; check timing is initial prescribing and at least every 4 months if continued; recheck interval days is 120; exemptions is hospice, certain short ED or post-op supplies, inpatient, recorded from its source on 2026-08-15. - **jurisdiction:** California _(verified: appears in the quote below)_ - **mandate status:** mandatory - **drug schedules covered:** Schedule II-IV - **check timing:** initial prescribing and at least every 4 months if continued _(verified: appears in the quote below)_ - **recheck interval days:** 120 - **exemptions:** hospice, certain short ED or post-op supplies, inpatient _(verified: appears in the quote below)_ ## What the source says > California (CURES): Must check before first prescribing a Schedule II–IV controlled substance to a patient and at least every 4 months if it remains in the plan. Common exemptions: hospice, certain short ED or post-op supplies, inpatient. ## Source - https://pharmacyfreak.com/pdmp-prescription-drug-monitoring-program-you-are-legally-required-to-check-the-database-but-when-the-state-by-state-rules-you-must-know/ Last verified: 2026-08-15. Review by: 2027-02-11. Part of [PDMP Mandatory Prescriber Check Requirements by State](https://referencesource.org/pdmp-mandatory-check-requirements/).