After completing 24 hours of ASSE 12080 approved courses, the test taker must then review several different documents/standards (which include the ANSI-ASHRAE-188-2018, the CDC 2017 and 2021 Legionella Toolkit, and the American National Standard ASSE/IAPMO/ANSI 12080 document). Upon completion of all courses and review of all applicable documents, the test taker must now take the ASSE 12080 Course itself, whereupon receiving a passing grade then makes the test taker ASSE 12080 Certified.