A coalition of more than 1,000 companies, including several U.S. industrial giants and some major players in the fenestration industry, have signed a letter urging Congress and the administration to preserve the popular Energy Star program, which has been targeted for elimination in President Trump’s 2018 budget plan.

“Energy Star is a model for successful collaboration between the public and private sectors,” reads the letter, which was put together by the Alliance to Save Energy, an energy-efficiency advocacy group based in Washington, D.C. “It enjoys a long track record of success and should be strengthened, not weakened, to ensure it continues providing these important benefits to the public while helping us meet our energy and environmental goals.”

Andersen Corp., the largest door and window manufacturer in North America; CBRE Group, Inc., the world’s largest commercial real estate services and investment firm; Ingersoll Rand, parent company of brands such as Trane; and United Technologies Corp., parent company of Carrier and other brands, are among the businesses and organizations that have signed the letter.

Other companies in the fenestration industry who signed the letter include Coronet Window Company, Glass & Window Warehouse, Grayboyes Commercial Windows, Paradigm Window Solutions, Plastpro, ProVia, Schwinco Architectural Products, Steves & Sons, Unlimited Windows, Velux America, Vitro, ViWinTech Windows & Doors, Window Mart, Window Replacement of Georgia, Windows America and Zen Windows Carolina.

About 300 fenestration manufacturers are listed as partners on the Energy Star website. Most of them heavily promote their participation in the program in advertising material and press releases.

Energy Star also rates 21 types of commercial and industrial buildings on a 1-100 scale. Additionally, its Portfolio Manager, an online tool that measures and tracks energy and water consumption, as well as greenhouse gas emissions, is in use in 40 percent of all U.S. commercial buildings.

“Shutting down this program would hurt American businesses, consumers and our overall economy, and we strongly encourage the administration to reconsider the budget proposal,” said Kateri Callahan, president of the Alliance to Save Energy. “This letter demonstrates the enormous business support for a venerable public-private partnership and sends a clear directive to Washington: keep the Energy Star program going and growing.”

According to the American Council for an Energy-Efficient Economy, Energy Star programs have saved consumers a cumulative total of $430 billion through 2015.