The Obama administration proposed a pair of energy efficiency regulations Thursday for certain appliances it says will slash energy bills and carbon emissions.

The rules, which had been under review at the White House Office of Management and Budget for nearly two years, would affect commercial refrigeration equipment such as “restaurant-size fridges” and walk-in coolers and freezers, White House climate and energy adviser Heather Zichal said in a blog post that announced the proposals.

“These critical steps bolster the energy productivity of our economy, cut energy costs for American families and businesses, and leave a healthier planet for future generations,” Zichal wrote of the administration’s energy efficiency efforts.

All told, the two rules floated Thursday would shave energy spending by $28 billion and curtail carbon pollution by 350 million metric tons through the next 30 years, the Energy Department estimated