In March 2007, Arkansas enacted Act 864 of 2007 creating a certification program and regulations for the clean up of contaminated properties through the illegal manufacture of meth. The standards recommends removing furnace and duct work, but it is not prohibited to attempt to decontaminate the HVAC system. All floor and window fans will be removed and disposed of, all vents such as the range/stove vent or bathroom vent will also be removed and replaced. Drop ceilings or acoustical ceiling tiles will be removed and replaced. Remove and replace any items visibly stained otherwise clean surfaces three times with hot water and detergent solution. Pre and post sampling must be completed by a certified clandestine laboratory contractor on the approved list. Post samples must be 0.05ug/100cm² or non-detect to achieve clearance. Properties remain on the contaminated property list until cleared. The standards do not mention any standards for decontaminating user sites just clandestine laboratories.
Arkansas Department of Environmental Quality