All oil burning equipment and systems, both new and existing, and parts thereof must be maintained in a safe condition.
When performing any service on a customer's heating system, the licensee must notify the property owner in writing of any code violations and make recommendations to address them.
When performing an annual tune-up on a heating system, a combustion efficiency test must be conducted, and a copy of the test results must be posted on-site.
02-658 C.M.R. ch. 8, § 4