There has been a concern for damage to the environment and to structures like bridges and parking garages caused by the use of chloride deicers. In the 1970’s, the Federal Highway Administration (FHWA) identified Calcium Magnesium Acetate as the only low-corrosion chemical alternative to road salt that also protected the environment. Years of research and field applications have proven CMA is no more corrosive than tap water and does not harm vegetation or receiving waters.