Rep. Duncan Hunter (R-Calif.) wants the White House to take public comment on its decision to increase the estimated damages from carbon emissions that agencies use in regulations.

Bloomberg reports that Hunter introduced a bill Friday to force the White House Office of Management and Budget to seek comment on the changed cost, and submit information to Congress explaining its methodology behind the increased estimate.

A recent Energy Department rule that boosted efficiency standards for microwave ovens used a revised “social cost of carbon,” which increased the estimated benefits of the regulation.

“Tucking the latest carbon calculation in a little noticed rule on microwave ovens is suspect to say the least, but how that calculation will be used in a cost-benefit analysis going forward absolutely matters,” Hunter said in a statement to Bloomberg. “This is a process that needs to be more open and transparent, and this bill will do exactly that.”