California has the most layered farmers market permit system of any state, and which permits you need depends entirely on what you sell. Growers need a Certified Producer's Certificate. Prepared-food vendors need a Temporary Food Facility permit from the county. Cottage food makers selling pre-packaged goods often need neither. Almost everyone needs a free seller's permit. Here's how to figure out your exact path without getting lost in three different agencies.
The short version: California sorts market vendors into three tracks. If you grow what you sell, you need a Certified Producer's Certificate (CPC) from your County Agricultural Commissioner. If you sell prepared food, you need a Temporary Food Facility (TFF) permit from the county health department where the market runs. If you make cottage foods (home-baked goods, jams, candy), a Class A operator selling sealed, labeled products at a certified market usually needs no TFF, but open sampling or on-site prep changes that. Separately, you need a free California seller's permit. Almost every step here runs through your county, not the state.
The goal is getting cleared to sell. Once you are, a Homegrown storefront ($10/month, 0% commission) makes taking California orders, pickups, and payments easy.
California doesn't have one "farmers market permit." It has three separate paths, and you follow the one that matches your product.
Track 1: You grow it. If you sell fruits, vegetables, or other crops you grew yourself at a Certified Farmers' Market, you need a Certified Producer's Certificate (CPC) from the County Agricultural Commissioner where you farm. The CPC is tied to what you actually grow, and it's inexpensive (around $2/year in state fees, though your county may add to that). You can't sell processed food under a CPC alone.
Track 2: You prepare food. If you sell prepared or ready-to-eat food, you need a Temporary Food Facility (TFF) permit from the county Environmental Health Department where the market operates. You may also need a Processed Food Registration from the California Department of Public Health (CDPH) first.
Track 3: You make cottage food at home. Covered in its own section below.
Figure out your track before you apply for anything, because applying for the wrong permit wastes weeks.
California cottage food has two classes. Class A is direct-to-consumer only, with a sales cap around $75,000. Class B allows direct plus wholesale (think selling through a shop), with a cap around $150,000. Class A registers with the county health department; Class B needs a county permit plus an annual kitchen inspection.
Here's the part that matters for markets: a Class A operator selling only pre-packaged, properly labeled cottage food products at a certified market usually does not need a separate TFF permit. But the moment you do open sampling (cutting up a loaf for people to try) or any on-site preparation, you trigger a TFF requirement. Class B operators follow their county permit rules regardless.
For the full list of what you can make and the labeling rules, see our California cottage food law guide and our step-by-step on how to start a cottage food business in California.
Separate from any food permit, if you make taxable sales in California you need a seller's permit from the California Department of Tax and Fee Administration (CDTFA). It's free, and you'll want it even as a cottage food vendor, since the tax registration is separate from the food rules. Many California counties also post local guidance for market vendors, like Santa Clara County's certified farmers market permit page.
The single most important thing to understand about California: there's no one state portal for market vendor permits. The Certified Producer's Certificate comes from the County Agricultural Commissioner. The TFF permit comes from the County Environmental Health Department. Class A cottage food registration is county health. Even the market itself has to be certified by the county.
That means fees and exact steps vary from county to county. A TFF permit might run anywhere from $50 to a few hundred dollars per season depending on where you are. Start with the state overview at the California Department of Food and Agriculture certified farmers markets page, then go straight to your county's ag commissioner and environmental health department for the real numbers.
Sampling is where cottage food vendors get caught. Selling sealed, labeled Class A products needs no TFF. But handing out open samples at a certified market triggers a TFF permit requirement. If samples are part of your plan, budget for that permit and check your county's specific sampling rules before market day.
Yes, and which one depends on your product. Growers need a Certified Producer's Certificate from the county ag commissioner. Prepared-food vendors need a Temporary Food Facility permit from county environmental health. Cottage food vendors selling sealed Class A products often need neither. Everyone needs a free seller's permit.
Usually not. A Class A cottage food operator selling pre-packaged, labeled products at a certified farmers market typically doesn't need a Temporary Food Facility permit. Open sampling or on-site preparation does require one, and Class B operators follow their county permit rules.
It's the certificate growers need to sell crops they grew at a California Certified Farmers' Market. You get it from the County Agricultural Commissioner where you farm, and it's tied to what you actually grow. State fees are around $2/year, though counties may add fees.
It varies by county. The grower's certificate is a couple of dollars in state fees, while a Temporary Food Facility permit can run from about $50 to several hundred dollars per season depending on the county.
Yes, if you make taxable sales. The California seller's permit from the CDTFA is free and is separate from any food permit, so cottage food vendors need it too.
California's system looks complicated because it runs through your county, but the path is simple once you know your track: growers get a Certified Producer's Certificate, prepared-food vendors get a county TFF permit, and Class A cottage food vendors selling sealed products usually skip the food permit. Everyone gets the free seller's permit, and everyone confirms the details with their county. Once you're cleared, a simple storefront makes pickups and payments easy. Set up a Homegrown storefront for $10/month at 0% commission, and check other states on our cottage food laws by state hub, or compare every state in our farmers market vendor permits by state guide.
*This guide is general information, not legal advice. Permit rules change and vary by county. Verify current requirements with your County Agricultural Commissioner, County Environmental Health Department, and the CDTFA before selling. Last updated: June 2026.*
