(QA, 2)

• Level 1 audit - Satisfaction Questionnaire (2.1)
• Level 2 audit - Documentation Assessment (2.2)
• Level 3 audit - File Assessment and Modelling Verification (2.3)
• Level 4 audit - On-site evaluation with energy advisor (2.4)
• Level 5 audit - On-site evaluation without energy advisor (2.5) - performed by an independent auditor at the request of NRCan