09/11/2009 05:12 am ET Updated May 25, 2011

Taxi Fuel Surcharge Going Back Into Effect

Only three weeks after expiring, Chicago's taxi fuel surcharge is coming back Thursday at 12:01 a.m., the city's Department of Business Affairs and Consumer Protection announced Tuesday.

The surcharge takes effect whenever gas prices rise above $2.70 a gallon for seven consecutive days, as measured by AAA's Daily Fuel Gauge Report.

As of Tuesday, the metro area has seen six consecutive days above $2.70 a gallon.

"BACP anticipates reaching seven consecutive business days above $2.70 on Wednesday August 12th and at 12:01 a.m. Thursday , August 13th a $0.50 fuel surcharge will be in effect," a city press release read.

For the surcharge to expire again, gas prices must fall below $2.70 a gallon for seven consecutive days.

Taxis are required to announce the surcharge with an orange sign in their cabs. Unless the sign is posted, passengers do not have to pay the fee.