Fiserv and several major fuel retailers, including BP, are warning U.S. merchants to stop selling unauthorized vaping products or face significant financial penalties, reflecting an expanding nationwide effort to disrupt the illegal vape market through the payment system rather than traditional enforcement alone.

According to notices sent to retailers, businesses that continue processing sales of unauthorized electronic nicotine products could face substantial fines, payment network investigations, or even the loss of card processing services. The warnings follow increasing pressure from a coalition of state attorneys general and local authorities seeking to curb a market estimated to generate billions of dollars annually.

Rather than focusing solely on manufacturers or distributors, regulators are increasingly targeting the financial and commercial infrastructure that enables illegal sales. Payment processors, fuel retailers, e-commerce platforms, and logistics providers are all being encouraged to prevent transactions involving products that lack authorization from the U.S. Food and Drug Administration (FDA).

BP informed its service station operators that selling unauthorized vaping products may violate both payment network compliance rules and retailer agreements. Similar guidance has reportedly been issued by Marathon Petroleum and Valero, while Fiserv subsidiary CardConnect warned merchants that non-compliance could trigger corrective action.

The regulatory strategy has already expanded beyond physical retail. Shopify recently prohibited sales of unauthorized vaping products on its platform, while Mastercard has indicated it may investigate merchants that facilitate illegal vape transactions.

Only a limited number of vaping products currently have FDA authorization for legal sale in the United States, yet unauthorized brands remain widely available through convenience stores, online marketplaces, and independent retailers.

The coordinated enforcement campaign signals a broader evolution in regulatory policy: instead of relying exclusively on criminal enforcement, authorities are increasingly using payment networks and commercial partnerships as tools to restrict access to regulated products.

For retailers, the message is becoming increasingly clear—compliance is no longer simply a legal obligation but also a condition for maintaining access to essential payment infrastructure.