A California lawmaker wants state officials to consider greenhouse gas emissions when making new purchases, a proposal that would add a new wrinkle to the bidding process for government contracts.

Assemblyman Rob Bonta (D-Oakland) said the legislation (AB 262) would “harness the state’s enormous buying power to support clean manufacturing.”

(Alexis Cuarezma / For The Times)

The measure, which includes state agencies and university systems, would affect the purchase of materials such as asphalt, cement, steel and glass for projects such as hospitals, dormitories and roads.

Companies bidding on state contracts would be required to report greenhouse gas emissions generated by the manufacturing and transportation of supplies. Officials would then factor that information into their decision.

Given California’s goal of slashing emissions, Bonta said he hopes that the legislation “puts the state’s money where it’s values are.” He doesn’t expect the requirement to report more information would be a significant burden on companies seeking contracts.

“This will just be one more piece of information that will need to be added,” he said.