The health inspector who walks into your restaurant this year didn't call ahead. They don't have to. Under California law, routine food safety inspections are unannounced — and for most full-service restaurants in the state, they happen between one and three times a year. Whether your next visit is in six months or eighteen depends on factors you can control: your risk category, your compliance history, and whether a customer complaint has come in since the last visit.

Here's what operators in California actually need to know.

All restaurant inspections in California operate under the California Retail Food Code (CalCode), which establishes uniform statewide standards for food safety, sanitation, and equipment maintenance. Individual counties enforce CalCode through their local Environmental Health departments — which means the rules are consistent, but the inspection frequency, grading systems, and posting requirements vary by county.

Inspections are conducted by registered Environmental Health Specialists. They are unannounced. You cannot schedule them, delay them, or request advance notice of a routine inspection.

How often California restaurants are inspected

CalCode requires that all retail food facilities be inspected at least once per year. Beyond that minimum, frequency is risk-based — determined by the type of food you serve, your operational complexity, and your compliance history.

In practice, most full-service restaurants in California are inspected 1 to 3 times per year. The factors that push frequency higher:

  • Risk category — facilities that handle raw animal products, cook from scratch, or operate high-volume food service are classified as higher risk and inspected more frequently than a coffee shop or prepackaged food retailer.
  • Complaint-driven inspections — a customer complaint about food safety, sanitation, or pest activity triggers an unannounced follow-up visit, separate from the routine inspection schedule.
  • Violation history — a restaurant that scores below the passing threshold, or receives a major critical violation, will receive a reinspection within days. Repeat violations over multiple inspections increase the baseline frequency going forward.
  • Foodborne illness reports — a reported outbreak linked to your establishment triggers an immediate investigation-driven inspection.

New restaurants receive an initial inspection before or shortly after opening, before the routine schedule begins.

In LA County alone, Environmental Health conducts inspections across more than 26,000 restaurants. Our analysis of 31,856 LA County inspections from 2023–2025 shows that 7% of restaurants failed to maintain an A grade in a single year — roughly 2,200 kitchens receiving a score below 90 in a 12-month period. Most of those score drops were caused by violations that had been accumulating on a predictable schedule, not by sudden failures.

In Los Angeles County specifically

LA County Environmental Health oversees inspections for more than 26,000 restaurants across unincorporated LA County and 85 of the 88 cities in the county. Independent cities — Pasadena, Burbank, and a handful of others — operate their own health departments under the same CalCode framework.

The LA County system works on a 100-point scale. Violations result in point deductions. The grade thresholds:

  • A grade — 90 points or above
  • B grade — 80 to 89 points
  • C grade — 70 to 79 points
  • Below 70 — potential closure pending reinspection

The grade card must be posted visibly at the entrance. A B or C in your window is visible to every customer who walks in.

One mechanism specific to LA County: the Owner Initiated Inspection (OII). If your grade drops and you've corrected the violations, you can request one OII per 12-month period to attempt to restore your grade before the next routine inspection cycle. This is worth knowing if you receive a B — you don't have to wait for the next routine visit to address it publicly.

Hood cleaning and fire suppression compliance fall under a separate authority — the Los Angeles Fire Department (LAFD) or LA County Fire, depending on your location. A passing health inspection score doesn't mean your hood cleaning documentation is current with the fire authority. Both need to be maintained independently.

Other Southern California counties

If you operate outside LA County, the CalCode framework is the same but the grading and reporting systems differ:

Orange County — inspected by OC Health Care Agency. Uses a letter grade system similar to LA County. High-risk restaurants are inspected up to 3 times per year.

San Diego County — uses the same 100-point scale. Restaurants scoring below 70 are required to close until violations are corrected and a reinspection clears them. Inspection results are publicly searchable on the county website.

Riverside County — letter grade system; a B or lower is the only non-passing result and triggers a mandatory reinspection cycle. One of the stricter counties for posting requirements.

In all cases: inspections are unannounced, records are public, and complaint-driven inspections can happen at any time regardless of when your last routine visit occurred.

What triggers more frequent inspections — and how to avoid them

The operators who see inspectors most often are not the ones with the most complex menus. They're the ones who've given Environmental Health a reason to return: a violation that wasn't corrected, a complaint that came in, a score that dropped.

The inverse is also true. Restaurants with consistent A grades and no complaint history tend to settle into a once-per-year routine visit. The maintenance schedule behind that consistency isn't complicated — it's documented, regular, and runs before accumulation becomes citable.

If you want to understand what violations are actually driving score drops in LA County, the inspection data analysis breaks down the most cited violations and their point costs. If you've already received a violation and need to know what comes next, the guide on responding to a failed inspection covers the reinspection process and what documentation you'll need. And if you want a checklist to run before your next visit, the health inspection checklist is the place to start.