Broward County Commissioners approved an ordinance that will make gas stations post the highest price of any grade of gasoline that drivers will pay for at the pump.

The ordinance will stop gas stations from advertising lower prices that customers pay when using cash instead of a credit or debit card, Kimberly Maroe, the Public Information Manager for the Broward County Board of County Commissioners, said in a news release.

"Paying for gas should not be guess work. Now when you see a posted price at the gas station, you'll know that's the most you'll be charged," Commissioner Lois Wexler, who sponsored the ordinance, said in the release. "It should do away with the bait and switch practice of advertising one price if you pay with cash and a higher non-advertised price if you plan to use a credit or cash card."

Gas stations offering full and self-service must also state "Self-Service" on the sign if the price refers to self-service pumps only.

Those who violate the ordinance face a fine of $250 for the first violation and $500 for repeat offenders.

The ordinance is applicable countywide except in cities that have already enacted rules for signs indicating the price of gasoline.