The Department of Environmental Protection amended Ch. 883, designating the chemical class nonylphenol and nonylphenol ethoxylates as a priority chemical and requiring manufacturers of household and commercial cleaning products, cosmetics and personal care products, and home maintenance products sold, marketed, or intended for use by consumers that contain intentionally added nonylphenol to report on chemical usage. The rule took effect January 9, 2011. http://www.maine.gov/sos/cec/rules/notices/2011/011211.html.