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Air pollution control (61 - 70 of 128 items)

Environmental Protection Issue Area: Active Assignments
http://www.gao.gov/products/AA-98-20(1)

AA-98-20(1): Published: Feb 1, 1998. Publicly Released: Feb 1, 1998.
EPA's Costs of Preparing Regulatory Impact Analyses
http://www.gao.gov/products/RCED-97-15R

RCED-97-15R: Published: Dec 6, 1996. Publicly Released: Jan 6, 1997.
EPA: Nitrogen Oxides Emission Reduction Program
http://www.gao.gov/products/OGC-97-8

OGC-97-8: Published: Jan 3, 1997. Publicly Released: Jan 3, 1997.