Rock Springs sits on I-80 in Sweetwater County, with energy crews, the county fair and a steady flow of travellers. The city has clear mobile vending rules. This guide was rewritten in October 2026 from the city code.
Plan review, handled. Before Sweetwater County Public Health licenses a truck, it wants a plan review: the layout, the equipment list, and the water and wastewater plumbing. We provide the build documentation, plumbing schematics and equipment specs your health department asks for, and we build to pass the inspection the first time. Most of our Wyoming trucks are built at our Denver shop, Mile High Food Trucks; see their Rock Springs food truck builder page and the Wyoming permits guide. Call or text 719-722-2537.
Building a food truck for Rock Springs? See what a fully-equipped, inspection-ready truck actually costs with our free build & cost calculator.
The health license
The state food license under W.S. 35-7-124 is $200 new and $100 a year to renew, runs one year from the date it is issued, and comes from either the Wyoming Department of Agriculture or a local health department. You need one license, not two.
Sweetwater County runs its own food program, so trucks based there license through the county health department. Call it for plan review and fees.
The Rock Springs city permit
Chapter 117 of the city code requires a mobile vending permit and the city occupational tax registration. Apply at least five business days before your first sale, one permit per unit: $25 a month or $100 a year, with annual permits expiring on 31 December and not prorated. You need the food license, vehicle registration and insurance, and general liability insurance if you will operate on public property. Private caterers working private events are exempt.
Where you can and cannot park
On private property you need the owner’s written permission. Public property needs written permission from the Mayor or the Mayor’s designee. On public property in non residential zones you can operate from 6 a.m. to 2 a.m., but within 200 feet of a residential zone you close by 10 p.m. Sunday to Thursday and midnight on Friday and Saturday. Stay 10 feet from hydrants and out of the 40 foot sight triangle at intersections and driveways. Trucks must be self contained with no utility hookups in the right of way.
Fire inspection
The city fire inspector inspects trucks under the vending chapter. Inspectors look for a Type I hood with a UL 300 suppression system serviced every six months, Class K and ABC extinguishers, propane cylinders secured outside the cab with leak tested lines, and a propane alarm.
Sales tax
Sweetwater County’s combined rate is 6 percent, 4 percent state plus two 1 percent county taxes. The current specific purpose tax is expected to end in early 2028.
Where trucks sell in Rock Springs
Sweetwater Events Complex and the county fair, energy and rail crews, I-80 traffic, community events and private catering.
In order
License through Sweetwater County. Apply for the city mobile vending permit at least five business days ahead with your food license and insurance. Pass the city fire inspection. Get written permission for each location.
Common Reasons Food Trucks Fail Rock Springs Inspections
- Plan review submitted without commissary letter. Sweetwater County Environmental Health doesn’t process incomplete applications.
- Trying to apply for the city Mobile Vendor Permit electronically. Rock Springs Planning and Zoning explicitly does not accept online applications. In-person or mail only.
- Wastewater tank undersized. 15 percent rule.
- Suppression tag past six months.
- K-Class extinguisher missing or in the wrong location.
- Food handling permit missing from the city Mobile Vendor application. The city specifically requires the Sweetwater County or Wyoming Department of Agriculture food handling permit attached.
- General liability insurance missing. Rock Springs requires it for operations on public property.
- Cold holding equipment can’t make 41°F under load. Especially during summer when desert heat hits 95°F+.
- Operating without the city Mobile Vendor Permit. Sweetwater County license alone doesn’t cover the city’s separate vendor permit requirement.
Frequently asked questions
How much is a mobile vending permit in Rock Springs?
$25 a month or $100 a year per unit; annual permits expire on 31 December and are not prorated.
Can a food truck set up on public property in Rock Springs?
Only with written permission from the Mayor or the Mayor’s designee, and with general liability insurance.
Do caterers need the Rock Springs vending permit?
No. Private caterers working private events are exempt.
Related guides
Wyoming food truck permits · Cheyenne · Casper · Laramie · Gillette · Sheridan · Jackson
Building a truck for Rock Springs
We build every truck to pass the plan review, the health inspection and the fire inspection on the first visit: a Type I hood with suppression installed by a licensed company, a three compartment sink and a hand sink with hot water, tanks sized for a full day, and propane in secured cylinders with a leak detector. Wyoming winters are hard on trucks, so we heat and insulate water lines and tanks on every Wyoming build. Custom food trucks start at $55,000 and trailers at $40,000. Call or text 719-722-2537 with your menu.
Jacob Varghese
Zion Foodtrucks
719-722-2537
Zion Foodtrucks builds custom food trucks, trailers, and concession trailers from our shop in Monument, Colorado and delivers them ready to pass inspection across the Mountain West. Owner Jacob Varghese and our team work with first-time owners every day, sourcing the vehicle and handling the full build so you do not have to. Questions about permits or your build? Call or text Jacob at 719-722-2537 or see our custom build services.
Free Food Truck Permit & Inspection Checklist
We put together a printable checklist covering every permit and inspection a mobile food business typically needs. Tell us where to send it and it is yours.
Next steps: free build & cost calculator · 2026 food truck cost guide · food truck financing
Already Have a Truck? We Do the Compliance Work Too
Passing an inspection is one thing, staying current is another. We handle the recurring items out of our Colorado shop:
- LP gas pressure testing, $350. Required annually, and again after any modification.
- Fire suppression inspection and service, $300. The code interval is every 6 months, not annual, which catches a lot of operators out.
- Hood and exhaust cleaning, with the written report and logbook entry inspectors ask to see.
Booked together they are one visit and one day off the road instead of three. Call or text 719-722-2537.
Ready to build your truck?
We design and build custom food trucks and trailers compliant with the regulations on this page. From a single phone call to keys-in-hand in 6 to 8 weeks for most builds.
Built in Woodland Park, Colorado. Delivered to operators in CO, AZ, NE, MT, and WY.