In 2006, Connecticut adopted guidelines for the cleanup of methamphetamine labs. These standards established an indoor target cleanup level of <0.1 ug/100cm² or non-detect. Hard, non-porous surfaces should be twice scrubbed using detergent solution then rinsed with clean water. If surface has visible staining complete removal and replacement may be required. When decontamination is completed hard surfaces should be recoated with a new layer of paint or floor finish (wax or other floor finish). Cleanup and sampling of former meth labs should be conducted under the supervision of a Certified Industrial Hygienist with oversight from the local health department.