Smoking is prohibited in most indoor public places in the United States and in a growing share of outdoor ones. Federal law bans it on commercial flights, on Amtrak trains, inside federal buildings, in public housing, and in schools and daycares. State clean indoor air laws cover workplaces, restaurants, and bars in nearly every state, and local ordinances increasingly reach parks, beaches, stadiums, and the sidewalks right outside building doors. The places you can still legally light up have become the shorter list.
Planes, Trains, and Transit
Smoking is illegal on virtually every commercial flight in the country. The federal ban covers all scheduled domestic flights and nonscheduled flights that carry a required flight attendant, and airlines flying into or out of the U.S. must enforce it on those routes too. E-cigarettes are treated as smoking under the same statute, so vaping on a plane carries the same legal consequences.1Office of the Law Revision Counsel. 49 U.S. Code 41706 – Prohibitions Against Smoking on Passenger Flights A separate regulation governs charter and commuter operations with similar restrictions.2eCFR. 14 CFR 135.127 – Smoking Prohibitions
Lavatories are their own problem. No passenger may smoke in one, and tampering with or disabling a lavatory smoke detector is a standalone federal violation that carries a civil penalty of up to $5,478.3eCFR. 14 CFR 121.317 – Passenger Information Requirements, Smoking Prohibitions, and Additional Seat Belt Requirements4Federal Register. Revisions to Civil Penalty Amounts, 2025
Amtrak prohibits smoking on all of its trains, including e-cigarettes, under a 2021 federal provision.5Office of the Law Revision Counsel. 49 U.S. Code 24323 – Prohibition on Smoking on Amtrak Trains Many states and transit agencies add their own bans at bus stops, train platforms, and other transit waiting areas.
Federal Buildings and Government Property
Executive Order 13058 bans smoking inside every building owned, rented, or leased by the executive branch, and in outdoor areas near air intake ducts. Agencies can designate an enclosed smoking room if it vents directly outside and holds negative air pressure, and agency heads can grant written case-by-case exemptions, but in practice most federal workplaces are fully smoke-free.6GovInfo. Executive Order 13058 – Protecting Federal Employees and the Public From Exposure to Tobacco Smoke in the Federal Workplace
Public housing is also smoke-free by federal rule. Every public housing authority in the country must prohibit smoking inside all living units, in indoor common areas like hallways and laundry rooms, in administrative office buildings, and in outdoor areas within 25 feet of those buildings. The rule applies to residents and visitors alike and covers all prohibited tobacco products, no matter what any individual lease says.7eCFR. 24 CFR 965.653 – Smoke-Free Public Housing
Military installations, VA medical campuses, Indian Health Service facilities, and federal prisons layer their own tobacco-free policies on top. Military hospitals prohibit tobacco on the entire campus, parking lots included.8U.S. Department of Health and Human Services. Tobacco Control Efforts in the Department of Defense VA facilities prohibit smoking and vaping on all VA property, including parking areas.9Department of Veterans Affairs. VHA Directive 1085 – Smoke-Free Policy for Patients IHS-operated facilities are tobacco-free as well.10Indian Health Service. Indian Health Manual – Tobacco-Free Policy In federal prisons, inmates may not possess or use tobacco anywhere on Bureau of Prisons grounds, with a narrow exception for authorized religious ceremonies.11Federal Bureau of Prisons. Program Statement 1640.05 – Smoking/No Smoking Areas
Schools, Daycares, and Children’s Health Facilities
The Pro-Children Act makes it illegal to smoke inside any indoor facility used for kindergarten through 12th-grade education, library services for children, routine health care, day care, or early childhood programs. It applies to public and private facilities alike and covers both federally funded and federally operated programs. The only carve-outs are for portions of inpatient facilities treating drug or alcohol addiction and for private residences.12Office of the Law Revision Counsel. 20 U.S. Code 7973 – Nonsmoking Policy for Children’s Services
Workplaces, Restaurants, and Bars
Most of the smoking rules you run into day to day come from state clean indoor air laws. The typical statute bans smoking inside enclosed workplaces and public spaces, which pulls in office buildings, retail stores, restaurants, and bars. Business owners usually have to post no-smoking signs at entrances and near building openings, and they face penalties for failing to enforce the rule.
The definition of “workplace” is generally broad. If the space has a roof and walls and someone works there, it probably counts. Restaurants and bars held out longest in many states, but the overwhelming majority now include them without food-service or alcohol-service exemptions.
Common exemptions, where they exist, include cigar lounges and hookah bars, though the conditions are strict: the business usually must earn a threshold percentage of its revenue from tobacco sales, limit entry to adults, and run a separate ventilation system. Private clubs, certain hotel rooms, and tobacco retail shops also get exemptions in some states. Tribal nations are sovereign, so state clean indoor air laws generally do not reach tribal land, which is why some tribal casinos still permit smoking on the floor even in states with comprehensive indoor bans. Federal facilities on tribal land, such as IHS clinics, remain tobacco-free under federal rules.10Indian Health Service. Indian Health Manual – Tobacco-Free Policy
Outdoor Areas and Entrance Buffer Zones
Many jurisdictions have pushed their bans outside. Public parks, beaches, playgrounds, sports stadiums, and transit stops are frequently designated smoke-free. Buffer zones around building entrances are common, requiring smokers to stand a set distance from doors, windows, and air intakes. The required distance varies, typically between 15 and 25 feet. Check your city or county ordinance before assuming any outdoor spot is fair game.
What Counts as Smoking: Vapes and Cannabis
Modern smoking bans are written to cover more than cigarettes. Most statutes include cigars, pipes, and hookah, and the legal definition of “smoking” in the majority of jurisdictions reaches inhaling or exhaling vapor or aerosol. That puts e-cigarettes, vape pens, and other electronic nicotine delivery systems squarely within the same rules as combustible tobacco.
Cannabis is increasingly folded in as well. More than 40 states and territories now restrict marijuana smoking in at least some of the same indoor spaces covered by their tobacco laws. The reasoning is practical: the risk to bystanders comes from the combustion and inhalation, not from which plant is burning.
Private Property: Landlords and Employers Can Go Further
Property owners have broad authority to set their own rules, and many go beyond what the law requires. Landlords can prohibit smoking in apartments, on balconies, and in common areas through lease provisions, and those clauses are enforceable. A tenant who violates a no-smoking lease provision risks eviction like any other lease breach.
Employers can make an entire property smoke-free, parking lots and outdoor spaces included, whether or not any ordinance requires it. Because these policies rest on property rights rather than public health statutes, they can be stricter than local law. An employee who smokes where company policy forbids it faces the same discipline track as any other rule violation: written warnings, suspension, or termination.
People with severe reactions to secondhand smoke may have further protection under the Americans with Disabilities Act. Courts have recognized that conditions like acute asthma triggered by tobacco smoke can qualify as a disability, and employers with 15 or more workers may need to provide reasonable accommodations, which in some cases has meant restricting or banning smoking in the workplace. The employee has to show that the sensitivity is medically documented and that a smoking restriction is the effective accommodation.
What It Costs If You’re Caught
Penalties vary by jurisdiction but almost always start with fines. First offenses for individuals typically run from $100 to $500, with higher amounts for repeat violations. These are usually civil infractions, not criminal charges. You get a citation from a health inspector or code enforcement officer, not an arrest.
Federal violations hit harder. Tampering with or disabling a smoke detector on an aircraft carries a civil penalty of up to $5,478, and smoking on a plane can trigger FAA enforcement on top of that.4Federal Register. Revisions to Civil Penalty Amounts, 2025 Inmates in federal prisons who possess or use tobacco face internal disciplinary proceedings.11Federal Bureau of Prisons. Program Statement 1640.05 – Smoking/No Smoking Areas
Businesses carry their own exposure. Employers and property managers who fail to enforce smoke-free laws or neglect to post required signage can be fined separately from the smoker. In some jurisdictions, repeated noncompliance triggers escalating penalties or workplace safety investigations with fines well into the thousands. On private property, consequences are contractual rather than regulatory: tenants face eviction proceedings, employees face discipline up to termination, and neither route involves criminal prosecution.