CASPER, Wyo. (AP) — Some Wyoming lawmakers are questioning why an agency paid $251,000 to purchase GPS units for cars in the state fleet without first consulting with them.

1,600 state vehicles that belong to the Wyoming Department of Administration and Information motor pool, the Wyoming Oil and Gas Conservation Commission and the Wyoming Game and Fish Department will have the devices by the end of the year.

At a Joint Appropriations Committee meeting Tuesday, lawmakers reviewed budget requests for the department ahead of the 2016 legislative session, when a two-year state budget will be adopted.

Department of Administration and Information Director Dean Fausset says the GPS units help lower emissions from state vehicles.