Toyota Motor Corp. said potentially valuable emissions credits that California plans to give to utilities for supporting rechargeable cars should go to automakers instead.

Carmakers absorbed the costs to develop advanced vehicles to meet state requirements, Kevin Webber, Toyota's U.S. general manager for regulation and certification engineering, said in comments filed last week with the California Public Utilities Commission.

"Any societal benefit from the low-carbon-fuel aspect of these vehicles, especially the generation of credits, must accrue to the auto manufacturer," he said.