Professional air quality testing provides comprehensive documentation including detailed sampling methodologies, accredited laboratory results, and compliance verification reports that meet LEED submission requirements. Documentation includes chain-of-custody procedures, quality control measures, and professional interpretation of results relative to LEED standards. Reports demonstrate that testing followed EPA-approved methods and that results meet the result-based criteria required for LEED credits. Professional documentation supports LEED application review and provides ongoing verification of building performance for recertification purposes.