Following the remediation process, the property will be re-tested and samples sent to an independent laboratory for analysis. The laboratory uses state of the art chromatography techniques that are extremely sensitive to very small levels of contaminant. In order to sign off a property the levels of methamphetamine contamination must be below the accepted Australian Standard of 0.5ug/100cm2 (internal surfaces of residential properties). Once the property is certified as contaminant free, we will provide a validation report and sign off the property for re-habitation.