The KRS 224.01-410 established a reasonable, appropriate and protective tiered response system to address the level of decontamination services required for a contaminated property. Also, it set regulated standards for decontamination and for certification of cleanup contractors. However, all four tiers of decontamination address former meth labs and do not address user sites. In Kentucky, the owner is not allowed to perform decontamination unless they are a certified contractor. The decontamination standard for methamphetamine is 0.1ug/100cm².