Last updated 2026-08-18
TL;DR
Every concession trailer in California needs a county Environmental Health permit (called a mobile food facility permit), a state seller's permit from CDTFA, and a fire suppression inspection if you cook with open flame. County fees run roughly $200 to $1,000 per year. Plan 4 to 12 weeks for the health permit alone. No single statewide board issues the permit; your county health department does.
Who actually regulates concession trailers in California?
There is no single "concession trailer board" in California. The state sets the baseline rules, but three separate agencies each own a piece of your approval.
The California Retail Food Code (CalCode), codified at California Health and Safety Code Sections 113700 through 114437, defines what a "mobile food facility" is and what equipment it must have [1]. Your county Environmental Health department enforces CalCode locally and issues the permit you actually tape to your service window.
The California Department of Tax and Fee Administration (CDTFA) issues the seller's permit you need before you collect sales tax on food [2]. It's free to apply for, but you need it before you open.
If your trailer has a hood suppression system over a fryer or open flame, the California State Fire Marshal and your local fire authority having jurisdiction (AHJ) must inspect and approve that system. Cal/OSHA also applies if you hire employees [3].
So the short answer: you'll deal with at least two agencies (county health and CDTFA) and possibly a third (fire) before your first sale. Some cities add a local business license on top of that. Check with your city clerk.
Do you need a license for a concession trailer in California?
Yes, and "license" is actually a few different documents layered together.
First, you need a Mobile Food Facility (MFF) permit from your county Environmental Health Services. This is the primary operating permit. California Health and Safety Code Section 114387 states that "a mobile food facility shall not operate without a valid permit issued by the enforcement agency" [1]. That enforcement agency is your county, not the state.
Second, you need a California seller's permit from CDTFA if you sell taxable goods, including most prepared hot food [2]. Cold grocery-type food is sometimes exempt, but hot prepared food generally is not. The CDTFA online registration is free and can be done in a day.
Third, if you operate in an incorporated city, many cities require a separate local business license. Los Angeles, San Diego, San Jose, and virtually every other incorporated city have their own business registration fee, typically $50 to $300 per year. Confirm with your city.
Fourth, if your trailer has a Type I commercial hood with a wet chemical fire suppression system, the local fire authority must inspect it before you cook. Some counties build that into the health permit process; others handle it separately.
Bottom line: budget for at least three separate filings (county health, state CDTFA, city business license) and possibly a fire inspection as a fourth. Missing any one of them can get your trailer shut on the spot.
What does the California county health permit process actually look like?
The process is similar county to county but the paperwork, fees, and timelines vary enough that you need to go directly to your county Environmental Health department, not a neighbor county's checklist.
Here is the general sequence most California counties follow:
1. Pre-application review. Most larger counties (LA, San Diego, Sacramento, Riverside) ask you to submit a plan check before you build or buy. You submit equipment specs, a trailer floor plan, and proposed menu. LA County's Environmental Health charges a plan check fee as part of its overall permit fee schedule [4]. Plan check for a new mobile food facility commonly runs 4 to 8 weeks.
2. Construction or retrofit. Your trailer must meet CalCode's equipment requirements: a three-compartment sink sized for your largest utensil, a separate handwash sink, appropriate refrigeration, and enough fresh water and wastewater holding capacity for your operating period. CalCode Section 114099.2 specifies the handwash sink as a distinct requirement from the utensil sink [1].
3. Facility inspection. An inspector visits the trailer before the permit issues. Most counties charge a separate inspection fee within the overall permit fee.
4. Commissary agreement. California requires every mobile food facility to operate from an approved commissary for storage, cleaning, and restocking. You submit a commissary agreement letter signed by the commissary operator. Finding an approved commissary is often the step that takes the most calendar time, not the county itself.
5. Permit issuance. Once plan check, inspection, commissary letter, and fee payment clear, the county issues your MFF permit. It must be renewed annually.
For operations in multiple counties, you need a permit from each county where you operate. There is no statewide reciprocity.
How much does a concession trailer cost to permit in California?
The honest answer is that permit costs alone are not a single number because fees vary by county, trailer size, and menu complexity. Here is what the real data shows.
County MFF permit fees across California's major counties range roughly from $200 to $1,000 per year, with plan check fees on top of that for new applications. LA County's fee schedule for mobile food facilities, published by the LA County Department of Public Health, shows MFF permits in the range of $487 to $834 per year depending on the risk level of the food operation [4]. San Diego County Environmental Health posts similar ranges [5].
CDTFA seller's permit: free to apply. No annual renewal fee.
City business license: roughly $50 to $300 per year depending on city.
Fire suppression system (if required): the suppression system itself is a trailer equipment cost, not a government fee, and typically runs $1,500 to $4,000 installed depending on the size of the hood. Annual service and inspection by a licensed fire suppression technician commonly costs $150 to $350. These are contractor costs, not agency fees.
The trailer itself is a separate conversation. A new purpose-built concession trailer in California typically runs $15,000 to $75,000 depending on size and equipment package. Used trailers go lower but need to pass the same CalCode inspection. The cost section further down breaks this out fully.
Plan check and first-year permit together often cost $600 to $1,500 at the county level. After year one, annual renewal fees are lower than the first-year combined total in most counties.
How long does getting a concession trailer permit take in California?
Four to twelve weeks is the realistic range for the county health permit process from the day you submit a complete application to the day you receive your MFF permit. Twelve weeks or more is not unusual in high-volume counties like Los Angeles.
Here is where the time actually goes:
Plan check review: 2 to 6 weeks in most counties. Incomplete submittals restart the clock.
Commissary agreement: this is often the hidden bottleneck. Finding an approved commissary that has space and is willing to sign your agreement can take 2 to 8 weeks on its own, especially in dense metro areas.
Scheduling the physical trailer inspection: add 1 to 3 weeks depending on inspector workload.
CDTFA seller's permit: the online registration at CDTFA.ca.gov issues a confirmation immediately and the formal permit arrives by mail within a few weeks [2]. This one does not hold up the rest of the process.
Fire AHJ inspection: if required, scheduling can add 2 to 4 weeks depending on your local fire department.
Building or retrofitting the trailer to CalCode standards and then sourcing the commissary early are the two moves that compress your total timeline the most. Do not wait until the trailer is built to start looking for a commissary.
How much does the concession trailer itself cost in California?
The trailer purchase or build cost is a separate bucket from permitting fees, and it's where most first-year capital goes.
New concession trailers built to CalCode spec: roughly $20,000 to $75,000. The low end buys you a compact single-axle trailer with basic cooking equipment. The high end is a large double-axle trailer with a full hood system, commercial fryer, flat top, and refrigeration.
Used concession trailers: $8,000 to $35,000 is a common range, but used trailers sometimes require costly retrofits to pass the CalCode plan check, particularly for handwash sink sizing and wastewater tank capacity. Get the plan check done before you buy, not after.
Generator (if no shore power): $1,500 to $5,000 for a commercial-grade unit that can run your refrigeration plus cooking equipment simultaneously.
Hood and suppression system (if cooking with open flame or deep frying): $2,500 to $6,000 installed, depending on hood size. This is a trailer equipment cost, not a permit fee.
First-year operating costs beyond the trailer and permits include commissary rent ($200 to $800 per month in California metro areas), commercial general liability insurance ($800 to $2,500 per year), vehicle registration for the trailer, and food costs. Nobody has a precise California-specific first-year cost study for concession trailers; the closest data comes from small business surveys that put first-year mobile food vendor operating costs (excluding the trailer purchase) in the $15,000 to $40,000 range, but that is a wide and uncertain band.
For the specific paper and equipment checklist that California's health and fire requirements generate, ConcessionPath's Health + Fire-Suppression Kit at /start bundles those document templates into one place for $149 one-time, which can save several hours of county website archaeology.
What is a commissary and why does California require one?
A commissary is a fixed, licensed commercial kitchen that your mobile food facility uses as its home base for food storage, prep, cleaning, and restocking. California Health and Safety Code Section 114285 requires every mobile food facility to operate from an approved commissary [1].
The commissary requirement exists because a trailer cannot self-contain all the sanitation infrastructure CalCode requires over a full operating day. Your commissary handles: bulk food storage in approved refrigeration, utensil and equipment washing between service periods, fresh water refill, and wastewater disposal.
You need to submit a signed commissary agreement letter to the county as part of your MFF permit application. The county health department then verifies that the commissary itself holds a valid permit.
Commissary rental rates in California metro areas run roughly $200 to $800 per month for shared kitchen time, though rates in the Bay Area and Los Angeles can exceed $1,000 per month for dedicated space. Some trailer operators partner with restaurants that have excess off-hours kitchen capacity. That arrangement works as long as the restaurant's existing permit covers commissary use. Confirm with your county health department before signing anything.
Some counties maintain lists of approved commissaries. Los Angeles County Environmental Health maintains a searchable facility database through its online portal [4]. San Diego County has similar resources [5]. Start with those lists before cold-calling restaurants.
What fire suppression and hood rules apply to California concession trailers?
If you cook with open flame, a deep fryer, or any appliance that produces grease-laden vapors, you almost certainly need a Type I commercial hood with a UL 300 wet chemical fire suppression system. This is not optional and not a gray area.
The California Fire Code and the California Mechanical Code (both administered under the California Building Standards Commission) set the equipment requirements. The local fire authority having jurisdiction does the actual inspection [3].
Key practical points:
The suppression system must be installed by a licensed contractor and tagged with a current service label. Most jurisdictions require semi-annual service inspections.
Some trailers operating only with electric equipment and no open flame may qualify for a Type II hood (grease and vapor only, no fire suppression required), but confirm this with your county health department and local fire AHJ before building out.
The fire inspection is coordinated separately from the health permit in most California counties. You may need a fire clearance letter to attach to your county health permit application.
For propane systems on the trailer, the California Plumbing Code and NFPA 58 apply to the LP gas installation. A licensed LP installer is required. Some counties require the county inspector to verify LP compliance as part of the plan check; others defer to the LP contractor's certification.
Do not underestimate fire compliance timeline or cost. A suppression system retrofit on a trailer that was not originally built for it can take 2 to 4 weeks and $3,000 to $6,000.
What other permits or registrations does a California concession trailer need?
Beyond the county MFF permit, CDTFA seller's permit, and fire clearance, here is what comes up for most operators:
City or county business license: almost every incorporated California city requires one. Fee is typically $50 to $300 per year. Unincorporated county areas may require a county business license instead.
DMV trailer registration: your concession trailer is a vehicle under California law and must be registered with the California DMV. Registration fees depend on trailer weight and year. A 20-foot concession trailer typically falls under the DMV's commercial trailer registration category [6].
Seller's permit from CDTFA: covered above. Free, but required.
Vendor/event permits: many events, farmers markets, and fairgrounds require a separate event permit or vendor application on top of your county MFF permit. Some California fairs fall under the California Department of Food and Agriculture oversight rather than county health, so the permit chain differs.
If you hire employees, you need a federal EIN (free from IRS.gov), California employer registration with the EDD, and workers' compensation insurance [7].
Food handler certifications: CalCode requires that every food facility have at least one certified food protection manager on staff (a ServSafe or equivalent certificate). All food handlers must complete a food handler training program within 30 days of hire under the California Food Handler Card Law (Health and Safety Code Section 113948) [1].
There is no single master checklist that covers every California jurisdiction because each city and county layers its own requirements on top of state law. Your county Environmental Health new applicant checklist is the most reliable starting document.
How does California compare to neighboring states on concession trailer rules?
California's MFF permitting process is generally more involved than most neighboring states, primarily because of the commissary requirement, two-agency plan check (health plus fire), and the volume of applicants in major metro counties that creates longer processing queues.
| State | Primary issuing agency | Commissary required? | Typical permit fee range | Typical timeline |
|---|---|---|---|---|
| California | County Environmental Health (CalCode) | Yes, statewide | $200 to $1,000/yr | 4 to 12 weeks |
| Arizona | County Environmental Health (county-level) | Yes, most counties | $100 to $500/yr | 2 to 6 weeks [see note] |
| Nevada | Southern NV Health District / county | Yes | $200 to $600/yr | 3 to 8 weeks |
| Oregon | Oregon Health Authority, county env. health | Yes, most cases | $200 to $700/yr | 3 to 8 weeks |
Note: Arizona fee and timeline data comes from Maricopa County Environmental Services published fee schedules. Confirm current fees directly with the issuing county.
The commissary requirement is common across Western states, so that part of the process is not unique to California. What is unique is the volume pressure: LA County alone processes more MFF permits than some entire states, which creates longer queues.
For a side-by-side look at how a nearby state handles this, the concession trailer board in Arizona guide covers Maricopa and Pima County specifics. The concession trailer board in Colorado guide covers another high-altitude Western state with its own commissary wrinkle.
If you're comparing West Coast options, the concession trailer board in Florida article shows how a high-volume, warm-weather state handles MFF rules very differently from California.
What are the most common reasons California MFF permit applications get rejected or delayed?
County health departments in California do not publish rejection rate data in a form that lets anyone make a precise claim. What they do publish, and what comes up consistently in county new-applicant guidance, are the recurring incomplete-application problems.
Missing or unsigned commissary agreement: the single most common delay trigger. The county cannot issue the permit without it.
Handwash sink does not meet CalCode sizing or placement requirements: the sink must be accessible without moving equipment and meet minimum bowl dimensions. CalCode Section 114099.2 specifies this. Many used trailers fail here [1].
Fresh water tank or wastewater tank too small for the proposed menu and service period: CalCode sets minimum capacities based on operating time and equipment type. Undersized tanks require a retrofit before the permit issues.
Plan check submittal is incomplete: missing menu, missing equipment spec sheets, missing floor plan dimensions. Each round of back-and-forth adds 2 to 4 weeks.
Fire suppression system not yet inspected or tagged: some counties require the fire clearance before they will complete the health permit inspection. Submitting both applications in parallel rather than sequentially saves time.
Trailer not registered with DMV: some county health departments ask for trailer registration as part of the application package.
The best single move you can make is to call your county Environmental Health department before you submit anything, ask for their new mobile food facility applicant checklist, and review it item by item. Most California county EH departments have phone lines specifically for pre-application questions.
What should you do first if you're starting a concession trailer in California?
Here is the actual sequence that minimizes wasted time and money, in order.
First, pick your county of primary operation and call or visit that county's Environmental Health department website. Download their current MFF permit application and new applicant checklist. Do not rely on third-party summaries (including this article) for the current fee amounts or exact document list, because counties update those regularly.
Second, draft your menu before you buy or build anything. Your menu determines what equipment CalCode requires, which determines your trailer spec, which determines your plan check category and fee tier. Locking in the menu first prevents expensive mid-build changes.
Third, start looking for an approved commissary immediately. This takes the longest calendar time relative to the effort required and cannot be parallelized the way the other steps can.
Fourth, submit your plan check application. If you are buying a used trailer, get the plan check submitted before you close on the purchase so you know whether a CalCode retrofit is required.
Fifth, register for your CDTFA seller's permit online. This takes one sitting and does not need to wait for anything else.
Sixth, apply for your city business license after you have your business name and address confirmed.
Seventh, coordinate your fire suppression inspection in parallel with the health permit process, not after it.
ConcessionPath's Health + Fire-Suppression Kit covers the document templates and equipment compliance checklist for steps four and seven, which is where most first-time applicants spend the most time on research. For a clean starting point on the paper side, see /start.
For comparison on how neighboring states structure this process differently, the concession trailer board in Idaho and concession trailer board in Georgia articles show how commissary rules and fire requirements vary outside California.
Frequently asked questions
Do you need a license for a concession trailer in California?
Yes. You need at minimum a Mobile Food Facility permit from your county Environmental Health department, a California seller's permit from CDTFA (free to apply), and a city business license. If you cook with open flame or a fryer, a fire suppression inspection is also required. There is no single statewide concession trailer license; the county is the primary issuing authority.
How much does a concession trailer permit cost in California?
County MFF permit fees range roughly from $200 to $1,000 per year, plus a one-time plan check fee for new applicants. LA County's published fee schedule shows MFF permits in the $487 to $834 range depending on risk level. Add $50 to $300 for a city business license and $150 to $350 per year for fire suppression system service if required. Confirm current amounts directly with your county.
How long does getting a concession trailer permit take in California?
Four to twelve weeks is the realistic range for the county health permit alone. Plan check review takes 2 to 6 weeks. Finding and signing a commissary agreement, which is required before the permit issues, can add another 2 to 8 weeks. Submitting a complete application and starting the commissary search early are the two moves that compress the total timeline most.
What is a commissary and is it required in California?
A commissary is a licensed fixed commercial kitchen that acts as your trailer's home base for food storage, cleaning, and restocking. California Health and Safety Code Section 114285 requires every mobile food facility to operate from an approved commissary. You must submit a signed commissary agreement letter with your county health permit application. Commissary rent in California metro areas typically runs $200 to $800 per month.
Does a concession trailer need a fire suppression system in California?
If you cook with open flame, a deep fryer, or any appliance producing grease-laden vapors, yes, you need a Type I commercial hood with a UL 300 wet chemical fire suppression system. The local fire authority having jurisdiction inspects and approves it. Trailers using only electric equipment with no open flame may qualify for a Type II hood without suppression, but confirm with your county and local fire AHJ before building.
Can you operate a concession trailer in multiple California counties?
Yes, but you need a separate Mobile Food Facility permit from each county where you operate. California has no statewide MFF permit or reciprocity between counties. Each county issues its own permit and may have different fee rates, inspection requirements, and approved commissary lists. Budget additional permit fees and potentially separate commissary agreements for each county.
What food handler certifications does California require for concession trailers?
CalCode requires at least one certified food protection manager on staff (a ServSafe or equivalent certificate). All other food handlers must obtain a California Food Handler Card within 30 days of hire under Health and Safety Code Section 113948. The food handler card training costs roughly $10 to $15 per employee and is available online from ANSI-accredited providers.
Does a concession trailer need to be registered with California DMV?
Yes. A concession trailer is a towable vehicle under California law and must be registered with the California Department of Motor Vehicles. Registration fees depend on trailer weight and model year. Some counties ask for proof of trailer registration as part of the MFF permit application package, so get the DMV registration sorted early in the process.
What is the California seller's permit and do concession trailers need one?
The CDTFA seller's permit authorizes you to collect California sales tax on taxable sales, including most prepared hot food. It is required before your first sale. Applying online at CDTFA.ca.gov is free and takes about one business day for confirmation. The permit has no annual renewal fee, though you file sales tax returns on a schedule set by CDTFA based on your revenue.
How much does a concession trailer cost to buy in California?
New purpose-built concession trailers in California typically run $20,000 to $75,000 depending on size and equipment package. Used trailers start around $8,000 but may need costly CalCode retrofits. A fire suppression system with hood adds $2,500 to $6,000 installed. A generator adds $1,500 to $5,000. Get a county plan check review before buying a used trailer to avoid surprise retrofit costs.
What events or venues in California require separate vendor permits beyond the county MFF permit?
Most farmers markets, fairs, festivals, and private events require their own vendor application or event-day permit on top of your county MFF permit. State fairs may fall under California Department of Food and Agriculture oversight rather than county health. Always confirm with the event organizer which additional permits the venue or promoter requires before you book a spot.
Do I need workers' compensation insurance for my California concession trailer employees?
Yes. California requires workers' compensation insurance for any business with employees, with very limited exceptions. You also need to register as an employer with the California Employment Development Department (EDD) and obtain a federal EIN from IRS.gov. Solo owner-operators with no employees are generally exempt from the workers' comp requirement but should confirm with their insurance agent.
How do I find an approved commissary for my California concession trailer?
Start with your county Environmental Health department's published facility database. LA County Environmental Health and San Diego County both maintain searchable databases of permitted food facilities. Shared commercial kitchen spaces, restaurant incubators, and established restaurants with off-hours kitchen capacity are the main sources. Call the commissary operator first, then confirm with your county that the commissary's permit covers mobile food facility use.
Is general liability insurance required for concession trailers in California?
California does not mandate a specific dollar amount of general liability insurance at the state level for MFF permits, but most event organizers, property owners, and commissaries require proof of commercial general liability coverage, typically $1 million per occurrence. Annual premiums for a concession trailer operation in California generally run $800 to $2,500 depending on the insurer, coverage limits, and your menu's risk profile.
Sources
- California Legislature, Health and Safety Code Sections 113700-114437 (California Retail Food Code, CalCode): California Health and Safety Code Part 7 (CalCode) governs mobile food facility equipment, commissary requirements (Section 114285), handwash sink requirements (Section 114099.2), permit requirement (Section 114387), and food handler card law (Section 113948)
- California Department of Tax and Fee Administration, Seller's Permit information (Publication 107): CDTFA issues the seller's permit required before collecting California sales tax; online registration is free
- California Building Standards Commission, California Building Standards Code (Title 24 CCR): The California Fire Code, enforced by local fire authorities having jurisdiction, sets requirements for commercial kitchen hood and fire suppression systems in mobile food facilities
- San Diego County Department of Environmental Health and Quality, Food and Housing Division: San Diego County issues Mobile Food Facility permits with fee ranges and approved commissary requirements similar to other major California counties
- California Department of Motor Vehicles, Registering a Vehicle: Concession trailers in California must be registered with the California DMV as towable commercial trailers; fees depend on weight and year
- California Employment Development Department, Employer Payroll Tax Account Number: California businesses that hire employees must register with the EDD for payroll tax purposes before paying wages
- National Fire Protection Association, NFPA 58: Liquefied Petroleum Gas Code: NFPA 58 governs LP gas system installation on concession trailers; California's Mechanical Code adopts NFPA 58 requirements for propane systems
- California Department of Food and Agriculture, Fairs and Expositions Branch: California state fairs and certain county fairs fall under CDFA oversight, which may apply different permitting rules than standard county Environmental Health MFF permits
- IRS, Apply for an Employer Identification Number (EIN) Online: A federal EIN is required for California concession trailer operators who hire employees; it is free and available through the IRS online tool