Which electrical specialty is fully explained in the RCW but only listed in the WAC?

The correct answer pertains to the "07 E specialty," which is specifically mentioned in the Washington Administrative Code (WAC) but is fully detailed in the Revised Code of Washington (RCW). This designation typically refers to a specific subset or specialty within electrical work that is controlled and regulated by the state, highlighting its separate rules and guidelines.

In Washington State, the RCW serves as the overarching legal framework that outlines the powers, duties, and regulations for various industries, including electrical work. Meanwhile, the WAC provides the specific details and guidelines for implementation of those laws. The distinction here lies in the acknowledgment that while the "07 E specialty" is recognized within the WAC, the comprehensive information about its standards and requirements can be found in the RCW.

This separation emphasizes the layered approach to regulation where certain aspects may be highlighted differently based on the context of legal versus practical application. Other options represent various areas of HVAC or electrical work but do not share this same regulatory arrangement as the "07 E specialty."