A requested service exceeds the stated restricted category

A fictional Delaware business receives a customer request covering several HVACR services. The assigned professional holds a restricted category, but nobody has checked which parts of the proposed scope that category permits. A customer says that passing a recent practice test should be enough and offers to sign a waiver for any other work. The office also has an old examination notice from a different jurisdiction. This exercise submits no application and undertakes no regulated work. Identify the current authoritative scope and approval questions that must be resolved, distinguish examination preparation from licensure and explain why customer agreement cannot replace the actual professional and project requirements.