Certified TestingExpanded AccreditationAAMA 501.2-09AAMA 502-21AAMA 503-14AAMA 511-08ASTM E 547-16ASTM E 783-09ASTM E 779-19ASTM D 4541 Expanded AccreditationAAMA 501.2-09AAMA 502-21AAMA 503-14AAMA 511-08ASTM E 547-16ASTM E 783-09ASTM E 779-19ASTM D 4541 ASTM E 779-19 {State} required standard test method for determining air leakage rate by fan pressurization (ie. Washington State Energy Code, Oregon: ASHRAE 90.1 and/or 2019 Oregon Zero Energy Ready Commercial Code, etc)