City commissioners and the police and fire unions still have not reached an agreement on new employment contracts for 2012.

The City Commission at its Tuesday meeting set a public hearing for Aug. 16, where commissioners will be presented with two contracts — one from the unions and one from city management. Commissioners then will hear “evidence” about which proposal is “more fair and equitable” based on the city’s finances, comparisons with employment plans for municipal workers in area cities and other factors.

The hearing is part of a formal process the city is required to go through when labor negotiations have officially been declared at an impasse. The city has not gone through the process recently because it has been able to reach a mutual agreement with the police and fire unions in past negotiations.

Under the terms of the process, it is still possible for the city and the unions to reach an agreement before the Aug. 16 hearing.