The Department of Environmental Protection amended Ch. 425, Asbestos Management Regulations. Changes would promote the use of "risk-based" standards to regulate asbestos more effectively in areas of greatest risk for exposure and integrate changes to standard industry practice that have evolved over the past six years. The amendment took effect April 3, 2011. http://www.maine.gov/sos/cec/rules/notices/2011/040611.html.