Wyoming fireworks laws permit the sale and use of consumer-grade fireworks statewide, but the rules that actually govern your Fourth of July come from your county and city, not the state. Wyoming Statutes 35-10-201 through 35-10-208 set a baseline: anything not specifically allowed is illegal, consumer fireworks that meet federal safety standards are allowed, and local governments can tighten the rules as much as they want. Breaking the state law is a misdemeanor carrying up to $750 in fines and up to 60 days in jail, and certain banned devices expose you to federal prison time on top of that.
What Counts as a Legal Consumer Firework
Consumer fireworks are the 1.4G category under federal classification: fountains, sparklers, Roman candles, firecrackers, and similar products sold at seasonal retail stands. Federal law caps firecrackers at 50 milligrams of pyrotechnic composition, and every consumer firework sold in the United States must carry warning labels describing its hazard and function. Manufacturers must also issue a General Certificate of Compliance.1Consumer Product Safety Commission. Fireworks
If a product sits on a legal retail shelf in Wyoming, it’s almost certainly a 1.4G consumer item. Display-grade 1.3G fireworks, the large aerial shells used at professional shows, are not sold to the public and require federal licensing to possess or handle.2Bureau of Alcohol, Tobacco, Firearms and Explosives. Illegal Explosives
Your County or City Decides the Real Rules
Wyoming does not preempt local control. Cities, towns, and counties can impose stricter regulations or outright bans on fireworks sales, use, and possession within their borders.3Justia Law. Wyoming Code Title 35, Chapter 10 – Crimes and Offenses They cannot loosen the state rules, but they can tighten them to the point of a total prohibition. Teton County, for instance, maintains a longstanding fireworks ban.
That means the same firework can be legal in one county and a misdemeanor one county line away. Before you buy or light anything, call your county clerk and your city or town hall. “Legal in Wyoming” answers almost nothing by itself.
When and Where You Can Use Them
There is no statewide window for consumer fireworks use. Local governments set their own permitted dates and hours, and many of them are narrow. Riverton, as one example, allows consumer fireworks only from 6 p.m. to 11:45 p.m. on July 4th and from 5 p.m. on December 31st to 12:30 a.m. on January 1st, and the city council can shorten those windows further.4City of Riverton, WY. Code of Ordinances Title 8 Health and Safety Chapter 8.04 Explosives and Fireworks
Location restrictions are common. Many municipalities prohibit fireworks near schools, hospitals, and government buildings, and areas bordering national forests and grasslands typically face the strictest controls.
Fire bans override everything. Wyoming’s dry climate and wind make wildfire a serious concern, and during drought conditions county commissioners and fire officials can impose temporary bans that cancel the normal rules with little notice. Violating a temporary fire ban carries the same criminal penalties as any other fireworks violation, and if your firework starts a wildfire, the civil liability for suppression costs and property damage can run into the hundreds of thousands of dollars.
Who Can Buy Them
The state minimum age to purchase consumer fireworks is 16. Retailers are expected to verify age and may ask for identification; selling to someone under 16 can result in fines or loss of the seller’s permit. Some municipalities set a higher threshold of 18, so check locally if you’re near the cutoff.
Children under 16 can still be present when fireworks are used, provided an adult is supervising. Parents and guardians who allow children to use fireworks irresponsibly can be held civilly liable for injuries or property damage.
Devices That Are Always Illegal
Some items are illegal everywhere in Wyoming, regardless of county, city, or season. The most commonly encountered are M-80s, cherry bombs, quarter sticks, and any homemade or altered explosive device. These are not oversized firecrackers; the federal government classifies them as illegal explosives because their chemical payload dwarfs the consumer safety limit.
A legal firecracker contains up to 50 milligrams of pyrotechnic composition. For comparison:
- M-80: approximately 3 grams, roughly 60 times the legal limit
- M-100 or silver salute: approximately 9 grams
- M-250: approximately 13 grams
- M-1000 or quarter stick: approximately 25 to 30 grams
Possessing, selling, or transporting any of these without a federal explosives license is a federal crime.2Bureau of Alcohol, Tobacco, Firearms and Explosives. Illegal Explosives Under 18 U.S.C. ยง 844, unlicensed dealing, distribution, or possession of explosives carries up to 10 years in federal prison. Transporting explosives with intent to harm people or destroy property also carries up to 10 years, rising to 20 years if someone is injured and up to life imprisonment or the death penalty if someone dies.5Office of the Law Revision Counsel. 18 USC 844 – Penalties
Wyoming peace officers who encounter illegal fireworks must seize them, and a court then orders them destroyed.3Justia Law. Wyoming Code Title 35, Chapter 10 – Crimes and Offenses
Public Displays
If you want to put on a public fireworks show, Wyoming law lets the governing body with jurisdiction over the area grant a permit for a supervised display. A competent operator must handle the fireworks, and the setup must not endanger people or property. In practice, you apply to the county or city, submit a site plan, and show proof of liability insurance, often at least $1,000,000. Carbon County, for example, requires completed applications at least 15 days before the display date.6Carbon County Government. General Fireworks Display Application
Display operators also need federal ATF licensing to handle 1.3G material and must follow NFPA 1123 for site layout and spectator distances. This is professional territory, not a DIY category.
Selling Fireworks
Selling fireworks in Wyoming requires a local retail permit. Fees vary widely. Laramie County, as one example, charges $2,500 for a five-month seasonal permit and $3,800 for an annual permit, and sellers must provide proof of insurance.7Laramie County, Wyoming. Permits and Licenses Out-of-state corporations also need a Certificate of Authority from the Wyoming Secretary of State.8Laramie County Government. Laramie County Consumer Fireworks Retail Sales Permit Application
Retailers must meet fire code requirements for storage, maintain required distances from schools, gas stations, and other sensitive sites, and cannot store 1.3G commercial display fireworks inside a retail facility.9eCode360. City of Evanston, WY Code Chapter 9 Fire Prevention Article II International Fire Code – Section 9-10 Sale of Fireworks Permit violations can lead to revocation after a hearing. Standard Wyoming sales tax applies; there is no separate state excise tax on fireworks.
Penalties and Liability
A violation of Wyoming’s fireworks statutes is a misdemeanor punishable by a fine of up to $750, up to 60 days in jail, or both.10Justia Law. Wyoming Code 35-10-207 – Penalties That range covers selling without a permit, using fireworks outside permitted hours, using them in a county that has banned them, and ignoring a temporary fire ban. Local ordinances can carry their own additional penalties.
Federal penalties apply when banned devices are involved. Unlicensed dealing or distribution of explosives can mean up to 10 years in federal prison. Even improper storage without a federal license can bring up to one year. Making false statements to obtain explosive materials carries up to 10 years and fines up to $250,000.5Office of the Law Revision Counsel. 18 USC 844 – Penalties
Insurance is where the hidden cost often lands. Homeowners policies may cover fireworks damage to your own or a neighbor’s property, but most policies exclude damage caused by fireworks that are illegal in your state or locality, and they generally exclude reckless or grossly negligent use. If you set off legal fireworks in a city that bans them, or use them during a fire ban, your insurer can deny the claim and leave you personally responsible for every dollar of damage, including wildfire suppression costs.
Transport and Disposal
Keep consumer fireworks in their original packaging during transport, store them away from heat sources, and don’t leave them in a hot vehicle. Commercial transporters carrying fireworks in bulk fall under U.S. Department of Transportation hazardous materials rules, and the Federal Motor Carrier Safety Administration inspects commercial loads for permits, shipping papers, placards, and securement.11U.S. Department of Transportation. DOT Issues Safety Alert on Transporting Fireworks and Updates Travel Safety Tips for the General Public
Spent and misfired fireworks should never go straight into household trash. Residual pyrotechnic material can ignite in a garbage truck or landfill. Soak them in water thoroughly, then seal them in a plastic bag before disposing. Some municipalities set up designated drop-off locations after major holidays. If improper disposal starts a fire, the legal consequences match any other fireworks violation.