Definition
In the United States, online gambling is regulated primarily at the state level, not federally, so legality and rules differ from state to state and by product. After a 2018 Supreme Court decision allowed states to legalise sports betting, many did, on their own timelines and terms; online casino (iGaming) is legal in a smaller number of states; online poker in fewer still; and some states prohibit all online gambling.
Each legal state runs its own licensing regime, regulator, tax rate, advertising rules, responsible-gambling requirements and (usually) a state-run self-exclusion list, and operators must be licensed and geofenced to each state they serve.
The result is a fragmented market: an operator or affiliate works state by state, with a different legal and commercial situation in each, and a national campaign has to respect the boundaries of where each product is actually legal.
In context
For affiliates, US state-by-state regulation makes geo-accuracy and per-state compliance the core operational discipline. Content and links for a given state must only feature operators licensed in that state, for the product that is legal there (sports betting but not casino, in many states), reference that state's regulator and self-exclusion program, and follow that state's advertising rules — several states restrict specific terms like "free" and "risk-free" for bonuses, mandate responsible-gambling messaging and helpline numbers, and limit college-sports and youth-facing content.
A page targeting one state's users should not route them to an operator or product not legal there.
The practical build is a state-by-state structure: a section per legal state with its licensed operators, legal products, regulator, tax context and rules, and geo-routing so users see only what applies to them; an approach for prohibited states (informational content, no operator links); and close tracking of legislative activity, since new states legalise and existing rules change regularly. Bonus and promotional language has to be checked against each state's specific advertising restrictions rather than assumed.
For affiliate-facing content, the framing is that the US is not one market but dozens, that compliance is defined at the state level for each product, and that an affiliate operating there needs per-state operator lists, geo controls, and monitoring of a fast-moving legislative map.
Worked example
An affiliate's US operation is structured state by state: each legal state has its own section with in-state licensed operators, only the products legal there, the state regulator and self-exclusion program, and bonus language checked against that state's ad rules. Geo-routing ensures users see only their state's options, and prohibited states get informational pages with no operator links.
Related terms
Frequently asked questions
Browse the full iGaming & affiliate glossary — hundreds of EN/RU terms with examples.
← Back to glossary