California’s nurse-to-patient ratio law sets minimum numbers of licensed nurses per patient that hospitals must maintain in every unit, on every shift, at all times. It was enacted as Assembly Bill 394 in 1999, took effect for hospitals on January 1, 2004, and remains the most prescriptive staffing mandate in the country. The specific ratios live in California Code of Regulations, Title 22, Section 70217, and the penalties for missing them live in Health and Safety Code Section 1280.3.
Required Ratios by Hospital Unit
The ratios vary by the type of care a unit provides. “Licensed nurse” means a registered nurse or licensed vocational nurse, and in psychiatric units, a psychiatric technician. The numbers are floors, not ceilings: if patient acuity demands more staff, the hospital is expected to provide it.1State Regulations | US Law | LII / Legal Information Institute. California Code of Regulations Title 22 Section 70217 – Nursing Service Staff
- Critical care and ICU, including burn, coronary care, acute respiratory care, and intensive care newborn nursery: 1 nurse to 2 patients.1State Regulations | US Law | LII / Legal Information Institute. California Code of Regulations Title 22 Section 70217 – Nursing Service Staff
- Step-down (transitional care): 1 to 3.
- Emergency department: 1 to 4.2Medical News Today. California’s Historic RN-To-Patient Hospital Staffing Ratios Upgraded Again With New Year
- Pediatrics: 1 to 4.
- Telemetry: 1 to 4.
- Other specialty care, including oncology: 1 to 4.
- Medical-surgical: 1 to 5.
- Operating room: at least one RN as the circulating nurse plus one scrub assistant per patient in surgery. The scrub assistant may be a licensed nurse, an operating room technician, or another person with demonstrated competence, but cannot be a physician assisting in the procedure.1State Regulations | US Law | LII / Legal Information Institute. California Code of Regulations Title 22 Section 70217 – Nursing Service Staff
For acute psychiatric hospitals, separate emergency regulations effective December 1, 2025, set the ratio at one licensed nurse per six adult patients and one per five patients under age 18.3CDPH (California Department of Public Health). Emergency Regulations for Acute Psychiatric Hospitals
Unlicensed assistive personnel cannot fill any of these slots. Only licensed nurses count toward the ratio.
The “At All Times” Requirement and Break Coverage
The ratios must hold continuously, including during meal and rest breaks.2Medical News Today. California’s Historic RN-To-Patient Hospital Staffing Ratios Upgraded Again With New Year A hospital cannot let the ratio slip for 30 minutes while a nurse steps away to eat. Someone qualified has to step in.
Nurse administrators, supervisors, managers, and charge nurses may relieve staff nurses during breaks and other routine absences from the unit, but only if they have demonstrated current competence in that specific care area. And when one of them is covering a break, they cannot simultaneously be counted toward the unit’s ratio for their own supervisory role.1State Regulations | US Law | LII / Legal Information Institute. California Code of Regulations Title 22 Section 70217 – Nursing Service Staff In practice, hospitals meet this with a mix of dedicated break-relief nurses, float pool staff, and staggered break schedules.
Penalties for Non-Compliance
Health and Safety Code Section 1280.3 sets the fines. CDPH must impose an administrative penalty of $15,000 for a first violation and $30,000 for each subsequent violation. Multiple staffing shortfalls found during a single inspection count as one violation for penalty purposes. A violation that occurs more than three years after the last one resets the clock and is treated as a first violation.4California Department of Public Health. AFL 23-27 – Nurse-to-Patient Ratios Penalties and Clarification on Unpredictable Situations Affecting Staffing Levels
Additional administrative penalties may be assessed on top of the base fine if inadequate staffing directly resulted in patient harm. The staffing-ratio statute itself is limited to administrative fines rather than license actions, but chronic staffing problems that contribute to substandard care can trigger broader deficiency citations under other CDPH authorities.
How CDPH Enforces the Ratios
CDPH verifies compliance primarily through unannounced inspections of general acute care hospitals. Inspectors can review staffing records, observe unit conditions, and speak privately with nurses about potential violations.4California Department of Public Health. AFL 23-27 – Nurse-to-Patient Ratios Penalties and Clarification on Unpredictable Situations Affecting Staffing Levels Hospitals are expected to keep accurate records showing which nurses were assigned to which units on every shift, along with evidence that ratios held during breaks and shift transitions. When a violation is identified, the documentation trail often decides whether the hospital can argue it took reasonable steps to comply.
How to Report a Staffing Violation
Anyone can file a complaint about a hospital’s staffing with CDPH. The most direct route is the online California Health Facility Information Database, known as Cal Health Find, on the CDPH website. The system routes the complaint to the appropriate district office. You can also file by phone, fax, or mail to the CDPH district office that covers the hospital’s county.5CDPH – CA.gov. Complaint Investigation Process Expect written acknowledgment within 10 days.
The filing process is the same regardless of facility type, whether the complaint involves a general acute care hospital, a skilled nursing facility, or another licensed health facility.
Retaliation Protections for Nurses Who Report
Health and Safety Code Section 1278.5 protects nurses and other healthcare workers who report unsafe conditions, including staffing violations. A hospital cannot retaliate against any employee or medical staff member for filing a grievance or complaint with the facility itself, an accrediting body, or a government agency. Retaliation includes termination, demotion, suspension, unfavorable changes to employment terms, and threats of any of those actions.6California Legislative Information. California Health and Safety Code HSC 1278.5
The law creates a rebuttable presumption of retaliation if the hospital knew about the complaint and took adverse action within 120 days of the filing. That presumption shifts the burden to the hospital to prove the action was unrelated. Employees who prevail in a retaliation claim are entitled to reinstatement, reimbursement for lost wages and benefits, and recovery of legal costs. Other healthcare workers who aren’t direct employees can recover lost income and legal costs.
Violations of the whistleblower statute carry a civil penalty of up to $25,000. Willful violations are a misdemeanor punishable by a fine of up to $75,000. During CDPH inspections, employees also have the right to speak privately with inspectors about staffing concerns.
Where California Stands Nationally
More than two decades after California’s ratios took effect, only Oregon has followed with its own unit-specific staffing requirements. Oregon’s Hospital Bill 2697, passed in 2023, requires hospitals to adopt nurse staffing plans that incorporate specific ratios, with civil penalties for violations taking effect in June 2025. About a dozen other states require hospitals to establish nurse-led staffing committees, but those models leave the actual numbers to each facility. No federal minimum staffing ratios exist for hospitals. If you work outside California or Oregon, the ratios described here don’t apply to your employer.