The protections for prepaid debit cards are now the same as those extended to users of debit cards tied to bank accounts.
Experts say more venues with large crowds could soon be experimenting with going cashless.
The government will require insurers to accept prepaid debit cards as payment for insurance under Obamacare.
Walmart and American Express have teamed up to offer the new Bluebird card. They say it should help people avoid the high fees on checking accounts and debit cards.