In 2012, Guidelines for Cleanup of Residential Property Used to Manufacture Methamphetamine were established. Decontamination recommendations include remove porous materials, HEPA vacuum the interior, initial wash with detergent water solution, clean and seal HVAC system to prevent re-contamination, flush plumbing traps, detergent wash all surfaces, encapsulate surfaces after final sampling shows surfaces have been cleaned to meet guidelines. Post sampling for methamphetamine should be 1.5ug/100cm². Decontamination and sampling should be completed by a qualified professional. The Virginia Department of Health does not license contractors.