Which of the following describes the authority given to a code official regarding mechanical systems?

The authority given to a code official regarding mechanical systems includes the ability to order the disconnection of energy sources. This responsibility is crucial for ensuring safety in situations where a mechanical system presents a danger, such as the presence of gas leaks, electrical faults, or hazardous conditions. In such cases, a code official must be able to intervene promptly to prevent accidents or harmful situations, which can involve requiring the disconnection of power or other energy sources to safeguard people and property.

While reviewing applications, providing licenses, and issuing site permits are also important functions within the realm of mechanical systems, these responsibilities focus more on the administrative and regulatory aspects rather than on direct safety interventions. The ability to order disconnection is a direct action that reflects the authoritative role of code officials in enforcing safety standards and regulations in mechanical installations.