Restaurant Health Inspection Grading Systems Explained by State

Why Grading Systems Vary Across the U.S.

Unlike cooking temperatures, which are standardized in the FDA 2022 Food Code and adopted (with minor variations) across most states, health inspection grading systems are entirely a local matter. States, counties, and cities each design their own scoring methodology, grade display requirements, and public transparency tools.

This creates a confusing landscape for multi-location restaurant operators, new franchisees moving into a new market, or owners who want to understand how their score compares to competitors in different cities.

This guide breaks down the major grading approaches, how they affect your public reputation, and what is consistent regardless of where you operate.

The Three Major Grading Approaches

1. Letter Grade Systems (A/B/C)

Letter grade systems are the most consumer-visible approach. Grades are displayed in restaurant windows — by law in most letter-grade jurisdictions — making the result immediately apparent to potential customers.

New York City operates one of the oldest and most studied restaurant grading programs:

| Points Deducted | Initial Grade | Action | |-----------------|---------------|--------| | 0-13 | A | Display A grade | | 14-27 | B | Re-inspection opportunity | | 28+ | C | Re-inspection required |

A critical distinction in NYC: the grade displayed is the best score earned across the initial inspection and one re-inspection cycle. A B or C score does not go immediately on the window — the restaurant gets a chance to re-inspect before the grade is officially posted.

Los Angeles County uses percentage-based letter grades:

| Score | Grade | |-------|-------| | 90-100% | A | | 80-89% | B | | 70-79% | C | | Below 70% | Closure risk / reinspection |

LA County requires all food establishments to prominently display their letter grade in a window visible to patrons before they enter. Studies following LA's 1998 introduction of mandatory letter grades found a significant reduction in hospitalizations from foodborne illness.

Las Vegas / Clark County, Nevada also uses letter grades, with grades displayed in the window:

| Score | Grade | |-------|-------| | 90-100 | A | | 80-89 | B | | 70-79 | C | | Below 70 | Closure |

2. Numeric Score Systems

Many states use numeric scores without a corresponding letter designation. The score is published online and may be posted at the restaurant, but there is no visible A/B/C in the window.

Florida uses a numeric system with scores published on the Florida Department of Business and Professional Regulation website. A score below 69 triggers a mandatory follow-up inspection. Closures happen for imminent health hazards regardless of score.

Texas uses a numeric demerit system, with results available through local health authority databases. Some counties (Harris, Dallas) maintain public lookup tools; inspection frequency and scoring methodology vary by municipality within the state.

Illinois uses a similar model — violation-based point deductions published online without a mandatory window display in most jurisdictions (Chicago has its own supplemental system).

3. Pass/Fail and Risk-Based Systems

Some jurisdictions use a simple pass/fail with categories of violations, rather than a cumulative score.

Washington State uses a violation-based system where closures are triggered by specific red-level violations rather than a point total. Results are published in the state's food establishment inspection search database.

Oregon operates similarly — inspection results are published online by the Oregon Health Authority with violation type classifications but no single numeric score.

National Trends: Online Score Transparency

Regardless of local grading methodology, a clear national trend has accelerated since 2020: inspection results are increasingly accessible online. This matters even in jurisdictions that do not require window posting of grades.

Third-party aggregation: Yelp and Google increasingly display health scores from government databases directly on restaurant listings. In participating jurisdictions, a customer searching for your restaurant will see your score before they decide whether to visit.

State databases: Most state health departments now maintain searchable public databases of all licensed food establishment inspection results, including violation details and timestamps.

Consumer behavior research consistently shows that online-visible health scores affect customer decisions more than previously understood. A 2022 review of customer behavior in markets with publicly searchable scores found measurable correlation between below-average scores and decreased visit frequency.

What Is Consistent Across All Systems

Despite the variation in grading methodology, three things are consistent in every jurisdiction:

1. Critical Violations Cost the Most

Whether a jurisdiction uses letter grades, numeric scores, or pass/fail, violations directly linked to foodborne illness (temperature failures, contamination, handwashing) carry the heaviest weight. The FDA 2022 Food Code priority violation categories are the backbone of every state's inspection system.

2. Repeat Violations Escalate

First-time violations typically result in a correction order. Repeat violations — the same issue cited in consecutive inspections — trigger progressive enforcement: increased inspection frequency, higher fines, conditional permits, and eventually license suspension.

3. Documentation Matters Everywhere

Every jurisdiction gives inspectors discretion in how they weigh documentation. An operator who can immediately produce 30 days of complete temperature logs, corrective actions, and calibration records is treated differently than one who cannot. This holds across letter-grade markets, numeric systems, and pass/fail jurisdictions.

Multi-Location Considerations

For operators with locations in multiple jurisdictions, the variation in grading systems creates a real operational challenge. A score of 82 means something different in Los Angeles (B grade) than in Florida (passing, near-reinspection threshold) or New York (B grade, re-inspection eligible).

Recommended approach for multi-location operators:

1. Standardize your internal compliance threshold at a higher bar than any jurisdiction requires
2. Use a unified temperature logging system that generates jurisdiction-neutral compliance reports
3. Maintain one master training standard and adapt communication to local requirements
4. Track local grading scales in a reference document for each location

| Jurisdiction | System | Passing Threshold | Window Display Required | |--------------|--------|-------------------|------------------------| | New York City | Letter (A/B/C) | A = 0-13 points | Yes | | Los Angeles County | Letter (A/B/C) | A = 90-100% | Yes | | Clark County, NV | Letter (A/B/C) | A = 90-100 | Yes | | Florida | Numeric | 70+ (69 = reinspection) | No (published online) | | Texas | Numeric (varies by county) | Varies | No (varies) | | Washington State | Pass/Fail + violations | No red violations | Online only |

How to Research Your Local System

1. Search "[your county] health department restaurant inspection" — most jurisdictions have a dedicated food safety page
2. Download your county's inspection form — this is the exact form the inspector uses
3. Look for the scoring methodology document or inspection manual
4. Search your restaurant's name in the public database to see your current published record

Understanding your specific grading system is the starting point. The day-to-day practices that produce high scores are the same everywhere.

How KitchenTemp Helps

No matter which grading system your jurisdiction uses, KitchenTemp provides the temperature documentation that protects your score. Complete timestamped logs, corrective action records, and instant compliance report generation work the same whether your inspector uses a letter grade or a numeric score.

Compliance documentation is the universal language of every inspection system. Start your free trial at KitchenTemp.