A1. BUILDING INSPECTORS (60 hours - required)

A2. BUILDING INSPECTORS (28 hours - optional)

B1. INSPECTORS BOILERS & HEATING INSTALLATIONS (30 hours - required)

B2. INSPECTORS BOILERS & HEATING INSTALLATIONS (20 hours - optional)

C1. INSPECTORS HVAC installation (30 hours - required)

C2. INSPECTORS HVAC installation (22 hours - optional)