The Boeing Co., Lockheed Martin Corp., and other aerospace firms using specialized chemicals critical to keeping airplanes aloft want EPA assurances they can continue to use them in a few years once the chemicals’ environmental impacts are better understood.
The Environmental Protection Agency proposed restrictions in August for 27 chemicals, including 12 medium- and long-chain chlorinated paraffins—compounds used in nuts and bolts, wires, lubricants, coatings, and other products. Some restrictions kick in after five years when three manufacturers of chlorinated paraffins must provide data to the agency on environmental risks.
EPA is taking public comment on the plan through Oct. ...