Experts don’t know how much gas prices may rise from the revised California climate program, which tightens standards and gives incentives for low-carbon fuels. The board ordered an annual review of the cost impacts.

On an 12-to-2 vote, the California Air Resources Board approved amendments to the state’s Low Carbon Fuel Standard, or LCFS, which aims to shift California’s fuel dependence away from gasoline and toward lower-carbon fuels such as biodiesel, hydrogen and electricity.

New regulations aimed toward limiting the carbon intensity in fuels in California could curb the state’s ongoing drop in gas prices. According to the Los Angeles Times, the California Air Resources Board approved the new measures in a 12-2 vote.