California is implementing a new strategy to discourage reduced fuel economy standards, with a group of Democrats calling on the state’s pension system to withdraw investments from automakers that fall in line.

Lead by U.S. House Transportation and Infrastructure Committee member and Democrat Mark DeSaulnier, the letter was addressed to the California Public Employees’ Retirement System (CalPERS), the largest pension fund in the country. It seeks to divert public retirement funds for companies, leveraging it’s $352-billion-plus in assets.

These standards are created by the California Air Resources Board, arguably the nation’s most prominent advocate for greenhouse gas emissions vehicle rules.

SEE ALSO: Mazda CX-5 Diesel Certified For Sale In California

“California has long been the leader on clean air, and it is incumbent on public retirement funds, like CalPERS, to uphold its stated values of social responsibility and sustainability and hold accountable any auto manufacturer that seeks to skirt public health for short-term profits,” said Desaulnier, in a statement to Bloomberg.

No word has yet been issued from CalPERS on the contents of the letter.

In early April, a letter by DeSaulnier also elaborated on the need for CARB’s standards to remain current, citing statistics.

“Our current fuel economy standards are on track to reduce America’s oil dependence by more than 2 million barrels a day, save $1.7 trillion in fuel costs, and effectively eliminate the impact of 59 million vehicles from the road by 2030,” cited DeSaulnier.