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OTC Model Rule for Solvent Degreasing 2011

The EPA’s Ozone Transport Commission* (OTC) organization has updated their 2001 model rule for cleaning with chlorinated and other VOC solvents. Included in this update are specific exemptions and clarification of cleaning and degreasing operations. NESHAP (National Emissions Standards for Hazardous Air Pollutants) solvents including Perchloroethylene, Trichloroethylene and Methylene Chloride for cold or vapor degreasing cannot exceed 25g/l. In order for these solvents to be used in any tank with an opening over 1 square foot have to be used in an airless/air-tight cleaning system. The proposed compliance date for this model rule will be January 1, 2014.

There are, however, several exemptions provided in this proposed rule including the open top surface area less than 1.0 square foot and containing less than 2 gallons. Additional end-use applications are exempt as well.

Please contact your Hubbard-Hall representative to discuss equipment modifications and several alternative solvents and cleaning processes that may be more suitable for your specific cleaning requirements.

*The Ozone Transport Commission (OTC) is a multi-state organization created under the Clean Air Act (CAA). They are responsible for advising EPA on transport issues and for developing and implementing regional solutions to the ground-level ozone problem in the Northeast and Mid-Atlantic regions.

OTC brings together the states from Virginia to Maine to coordinate reductions in air pollution that benefit the whole region. They provide air pollution assessment, technical support and a forum through which states can work together to harmonize their pollution reduction strategies. OTC members include: Connecticut, Delaware, the District of Columbia, Maine, Maryland,