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What is a Clean Unit (CU) Designation?

April 26, 2017clean CU

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What is a Clean Unit (CU) Designation?

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A Clean Unit Designation (CUD) is an option available for New Source Review (NSR) major stationary sources. If you have an emission unit designated as a Clean Unit for a particular pollutant, your application for a permit to establish a Clean Unit designation consistent with 40 C.F.R. 52.21(y) must include a demonstration that the unit meets the criteria for a Clean Unit in 40 C.F.R. 52.21(y)(3) Qualifying air pollution control technologies and (4) Demonstrating control effectiveness comparable to BACT .