An ordinance designed to protect consumers requires ticket brokers and street-level sellers to get a special permit to do business. New ticket sellers must agree to a background check and pay $75 to receive a sticker that they must display.

"It provides just a layer of comfort to someone who's buying a ticket that there's been a minimum base level of security and checking by the city on that individual," said Adam Collins with the Department of Code Enforcement.

While the majority of ticket sellers are legitimate, there have been cases of fans being sold counterfeit tickets.

Renny Harrison, a ticket broker in Carmel, cautioned anyone who buys a ticket off the street.

"With us, we'll be here Monday after the game, and if you buy on the street, maybe or maybe not," he said.

The permitting rules will be in place for this weekend's Big 10 Championship.

Collins said the city will be reminding ticket sellers of the new ordinance this weekend with the expectation that everyone will know the rules in time for the Super Bowl in February.

Fans who want to sell tickets are allowed to do so without a permit as long as the price doesn't exceed more than 15 percent of the face value.