DIY test kits cannot provide EPA-compliant documentation and create serious regulatory and liability risks. Home test kits aren’t legally sufficient for RRP compliance and may give inaccurate results that expose workers and families to danger. EPA-certified inspectors use professional-grade equipment and provide legally defensible documentation that satisfies regulatory requirements. Insurance companies typically won’t accept DIY results, and contractors need professional documentation for permit approval and liability protection. Professional testing protects against regulatory violations and provides comprehensive coverage that DIY methods cannot match.