L2 delivery and installation verification: evidence to ask for

ASHRAE describes L2 as checking proper delivery and installation on site. Depending on the project, contractors may complete installation checklists while the commissioning provider reviews or witnesses selected activities. Establish the candidate's actual part in that process.

Collecting signatures, walking an installation and comparing an installed item with the approved drawings are distinct activities. Each may matter, but they should not be described as the same experience.

Choose an anonymized example and follow the record from discovery to disposition. WBDG's documentation guidance emphasizes assigned responsibilities, controlled records and project-specific acceptance.

An engineer may report readiness without having authority to energize or release equipment. Ask who held those responsibilities and how outstanding items were classified.

For a hiring brief, specify whether the role is predominantly field verification, document review, contractor coordination or a combination. Do not require L5 leadership merely because the job belongs to a commissioning team.