Which installations are excluded from Code regulations under the exclusive control of an electrical utility?

Service drops and laterals refer to the electrical connections made by utility companies that deliver electricity from overhead or underground lines to the customer's property. These installations fall under the exclusive control of electrical utilities and are thus typically excluded from the regulations set forth by the National Electrical Code (NEC). The reason for this exclusion is that the utility companies have specific standards, practices, and regulations they follow, which may differ from the NEC guidelines.

In contrast, residential wiring, commercial electrical installations, and temporary power setups are areas that are generally governed by the NEC to ensure safe and effective electrical work within private properties. These installations involve the internal electrical systems of homes and businesses, which require adherence to specific safety codes to protect both the occupants and the integrity of the electrical infrastructure. Therefore, because service drops and laterals are primarily the responsibility of utility companies, they are listed as the correct response to the question regarding exclusions under Code regulations.