WETT offers courses to wood energy professionals to receive technical certification until successful completion of a course. Each candidate for WETT certification must complete a code compliance exam with a score of at least 70 percent to progress to a certification course.
There are three technical training courses available from WETT: technician or adviser, chimney sweeping, and site basic inspection. To complete each certification a candidate must gain a passing score of 70 percent on each exam.
To gain a WETT certification a candidate must complete a declaration form, including details of required work experience, usually 80 hours, and a letter of reference. WETT-certified individuals must complete one WETT certified course every five years to maintain certification. Advanced certification is available for candidates achieving nine educational credits with exam scores over 85 percent.