The Environmental Improvement Board amended N.M. Code R. §20.2.100, Greenhouse Gas Reduction Program. The regulations regulate greenhouse gas emissions statewide as an air pollutant and public nuisance through the imposition of an emissions cap. The rule takes effect January 1, 2013, or six months after N.M. Code R. §20.2.350 is no longer in effect, whichever is later. http://www.nmcpr.state.nm.us/nmregister/xxii/xxii02/20.2.100new.htm.