The Department of Ecology proposed to revise Wash. Admin. Code §173.422A, Motor vehicle emission inspection. Changes would amend the current emissions inspection process, exempting light diesel vehicles from inspection, eliminating the gas cap test and dynamometer testing, and tightening the test standards for heavy-duty diesel vehicles, among other alterations. There will be a public hearing on March 22, 2011, and comments are due March 31. http://apps.leg.wa.gov/documents/laws/wsr/2011/05/11-05-089.htm.