Montgomery County could be on the hook for an additional $7.24 million in pension outlays if a decision in a recent union dispute over disability benefits becomes law.

The ruling, which applies to all county government employees other than firefighters, would increase the level of benefits for employees who sustain “partial disabilities” in connection with their jobs to 60 percent of the employees’ final earnings, up from the 52.5 percent the County Council approved last year. The full disability benefit, which the Council set at 70 percent of final earnings, would be reduced to 66.7 percent.