Under federal law, a gambling device is any slot machine or similar machine with a drum or reel that may deliver money or property to a player as the result of chance, along with any other machine designed and manufactured primarily for gambling that operates on an element of chance, such as a roulette wheel. Essential subassemblies and parts intended for those machines are also gambling devices, even before they’re installed.1Office of the Law Revision Counsel. 15 USC 1171 – Definitions That definition comes from the Gambling Devices Transportation Act, better known as the Johnson Act, and it drives the federal rules on who can make these machines, how they can move between states, and what happens when someone breaks those rules.
The Two Elements the Definition Turns On
Two things have to be true for a machine to fall inside the Johnson Act. It has to operate on chance, and it has to be capable of delivering money or property. A machine that pays nothing out, or a device whose outcome is decided by player skill rather than luck, sits outside the statute.
Beyond the Johnson Act’s own words, courts and regulators often apply a three-part test when deciding whether something counts as gambling at all: consideration (the player pays to play), chance (the outcome depends at least partly on luck), and prize (the player can win something of value). A claw machine may avoid classification as a gambling device if a court finds the outcome depends predominantly on skill.
What counts as “value” is where much of the current fighting happens. In Kater v. Churchill Downs Inc., the Ninth Circuit considered whether virtual chips in a social casino app were a “thing of value.” Because the chips extended the privilege of continuing to play, the court held they qualified, and the app amounted to illegal gambling under Washington state law.2Justia. Kater v. Churchill Downs Inc. Blockchain gaming platforms and virtual reality casinos press the definition even further, since they may not involve a physical machine at all.
Moving Gambling Devices Across State Lines
The Johnson Act does more than define these machines. Under 15 U.S.C. § 1172, knowingly transporting a gambling device into a state from outside that state is a federal crime unless one of three conditions is met: the destination state has passed a law exempting itself from the transport ban, the device is bound for a licensed gambling establishment where betting is legal under state law, or the specific type of device is listed as lawful in a state statute.3Office of the Law Revision Counsel. 15 USC 1172 – Transportation of Gambling Devices States that want legal casinos have to affirmatively opt in before machines can lawfully cross their borders.
One narrow maritime exception matters in practice. A device may be transported into a state on a vessel if it’s used only when the vessel is outside state territorial waters and stays on board while docked.3Office of the Law Revision Counsel. 15 USC 1172 – Transportation of Gambling Devices This is how cruise ships legally run casinos at sea while keeping the machines closed in port.
Who Has to Register With the Justice Department
Anyone in the business of manufacturing gambling devices must register annually with the U.S. Attorney General before making a single machine, whether or not the device will ever leave the state. The same requirement reaches anyone who repairs, reconditions, buys, sells, leases, or makes such devices available to others if the machines have been or will be shipped in interstate commerce.4Office of the Law Revision Counsel. 15 USC 1173 – Registration of Manufacturers and Dealers
The registration has to list business and trade names, the address of every place of business, the location where records will be kept, and a description of the registrant’s planned activities for the calendar year. Registered businesses then keep monthly records of every device they manufacture, acquire, or transfer, including buyers, carriers, and consignees. Manufacturers must permanently affix a serial number, their name and trade names, and the date of manufacture to each machine.4Office of the Law Revision Counsel. 15 USC 1173 – Registration of Manufacturers and Dealers That paper trail is how federal investigators track a device from the factory to the floor.
Federal Penalties When the Rules Are Broken
The penalties climb sharply depending on how large the operation is and what other statutes get pulled in.
Johnson Act Fines
Violating the Johnson Act’s transport, registration, or record-keeping requirements carries a fine of up to $5,000, imprisonment, or both. That covers shipping devices across state lines without authorization, failing to register with the Attorney General, and neglecting the required records.
Illegal Gambling Business Act
Once an operation reaches a certain size, 18 U.S.C. § 1955 takes over. Conducting, financing, managing, or owning any part of an “illegal gambling business” is punishable by up to five years in federal prison, a fine, or both.5Office of the Law Revision Counsel. 18 USC 1955 – Prohibition of Illegal Gambling Businesses The business qualifies when it violates state law, involves five or more people, and either runs for more than thirty days or grosses at least $2,000 in a single day.6Office of the Law Revision Counsel. 18 USC 1955 – Prohibition of Illegal Gambling Businesses A state-law gambling offense becomes a federal crime once those thresholds are crossed.
RICO
Gambling is listed as a predicate racketeering activity under the Racketeer Influenced and Corrupt Organizations Act.7Office of the Law Revision Counsel. 18 USC 1961 – Definitions When prosecutors can show a pattern of racketeering tied to a gambling operation, RICO carries up to twenty years in prison per violation and mandatory forfeiture of any property acquired or maintained through the enterprise. Real property, personal property, financial accounts, and business interests are all reachable, and if the defendant has moved or hidden assets, the court can order forfeiture of substitute property of equivalent value.8Office of the Law Revision Counsel. 18 USC 1963 – Criminal Penalties
The Wire Act
The Federal Wire Act of 1961 reaches anyone in the gambling business who knowingly uses wire communications to transmit bets, wagers, or information assisting in placing bets on sporting events across state or international lines. Penalties reach up to two years in prison.9Office of the Law Revision Counsel. 18 USC 1084 – Transmission of Wagering Information Whether the statute covers only sports wagering or all online gambling has been the subject of shifting DOJ positions over the years.
Seizure and Forfeiture of the Machines Themselves
Federal and state agencies can seize gambling devices that violate applicable law. A raid or inspection typically starts the process, and confiscated machines then go through forfeiture proceedings where the operator has to demonstrate compliance with licensing and registration rules. If the operator can’t, the devices are permanently forfeited, and are usually destroyed or sold with proceeds directed to law enforcement or public programs.
RICO forfeiture reaches much further than the machines. Courts can order forfeiture of any interest acquired through racketeering activity, any property derived from illegal proceeds, and the business enterprises used to run the operation, with substitute assets available when defendants try to hide what they have.8Office of the Law Revision Counsel. 18 USC 1963 – Criminal Penalties
Where the Johnson Act Definition Does Not Reach
Two areas of federal gambling law run on their own definitions, and readers looking at a specific machine or platform should not assume the Johnson Act answers the question.
The Indian Gaming Regulatory Act sets up its own classifications for machines on tribal lands. Class II gaming covers bingo and similar games, including electronic or computer-aided versions, plus pull-tabs, lotto, punch boards, and certain card games; it specifically excludes banking card games like blackjack and baccarat and excludes electronic facsimiles of slot machines. Class III is casino-style slot machines, roulette, craps, and other traditional casino games.10Office of the Law Revision Counsel. 25 USC 2703 – Definitions Machines on a tribal floor that look like slot machines may actually be Class II devices if they resolve outcomes through a central bingo server rather than an independent random number generator, and Class III machines require a tribal-state compact approved by both the state and the federal government on top of the tribe’s own gaming ordinance.11Office of the Law Revision Counsel. 25 USC 2710 – Tribal Gaming Ordinances
Online gambling runs on a different definition too. The Unlawful Internet Gambling Enforcement Act of 2006 doesn’t define “gambling devices” and doesn’t make online gambling itself illegal; it targets the money. The UIGEA prohibits anyone in the betting or wagering business from knowingly accepting credit, electronic fund transfers, checks, or other financial instruments in connection with unlawful internet gambling, and it pushes the enforcement burden onto payment processors and financial institutions.12Office of the Law Revision Counsel. 31 USC 5363 – Prohibition on Acceptance of Any Financial Instrument for Unlawful Internet Gambling The statute’s definition of “bet or wager” is broad, covering staking something of value on a contest, sporting event, or game predominantly subject to chance, including buying a chance to win a lottery or prize.13Office of the Law Revision Counsel. 31 USC 5362 – Definitions Whether daily fantasy sports, social casino games, or skill-based gaming apps fall inside that definition is where most current disputes about online platforms play out.