Bill Edge, a spokesman for the commission, said the application was filed in late March and would increase the average bill by $4.70 per month.
Atmos serves Georgia customers in the Gainesville and Columbus areas.
Edge said the PSC is planning hearings in Gainesville on Sept. 3-4.
In 2005, the PSC voted to give Atmos Energy less than one-tenth of a requested $4.5 million rate increase.
The final amount, $370,000, raised the average bill by 37 cents.
The company currently a total of 65,000 customers in Columbus and Gainesville.
The schedule of hearings in the case will be as follows:
June 30-July 2, 2008: The Company presents its direct case
August 12-14, 2008: Staff and other intervenors present testimony and evidence
September 3-4, 2008: The Company presents its rebuttal case. The hearings will be held in Gainesville.
September 17, 2008: The Commission issues its decision in a Special Administrative Session