Okay, I can help you with that. Here's the relevant section from the 2020 National Electrical Code (NEC) regarding emergency disconnects for dwelling units, specifically focusing on detached buildings/garages

230.85 Emergency Disconnects.

(A) General. For one- and two-family dwelling units, all services and feeders shall have an emergency disconnect readily accessible and located outside of the building.(B) Location. The emergency disconnect shall be located at a readily accessible outdoor location on the outside of the building or structure served. The emergency disconnect shall be permitted to be located indoors, nearest the point of entrance of the service or feeder conductors, where installed in accordance with 230.6.(C) Disconnect Type. The emergency disconnect shall consist of a listed switch or circuit breaker suitable for use as service equipment.(D) Identification. The emergency disconnect shall be permanently field marked as "EMERGENCY DISCONNECT, SERVICE DISCONNECT" or "EMERGENCY DISCONNECT, FEEDER DISCONNECT". The disconnecting means shall be suitable for use as service equipment.(E) Grouping. Where more than one emergency disconnect is installed, they shall be grouped.

Key takeaways from the 2020 NEC related to your situation (detached garage/building)



Applies to dwelling units

This section

specifically applies to services and feeders for one- and two-family dwelling units. Outside Location

The disconnect is required to be "readily accessible and located outside of the building." There is an exception if conductors are ran per 230.6, it can be inside the building nearest the point of entry.

Feeder Disconnects

The requirement for an emergency disconnect applies to both services and feeders. This is important. If the detached building is fed from the main dwelling unit's service, then this section will require a emergency disconnect.

How to use this to argue against the need for a disconnect on the detached garage (assuming it's fed from the house)


If the detached garage is NOT a one- or two-family dwelling unit

This is the most common scenario. Point out that Section 230.85 specifically applies to dwelling units. A detached garage is accessory to the dwelling, not a dwelling itself. Therefore, 230.85

does not apply to the garage service or feeder. However, continue reading below because a local amendment could change things.2. Confirm No Local Amendments



Crucially, you must check for local amendments. Many jurisdictions have modified this section to broaden its application. A local amendment could extend this requirement to all buildings or structures, regardless of occupancy. This is the most likely way this requirement is being misinterpreted. Contact your local electrical inspector or building department to verify if there are any amendments to 230.85 in your area.
3. Point to other disconnect requirements (if applicable). Even if 230.85 doesn't apply, there may be other code sections that require a disconnect at the detached building, such as for maintenance and safety. For example, Section 225.31 and 225.32 requires a disconnecting means to be installed at the building.

In Summary



The NEC 2020 Section 230.85, by its wording, applies to the service or feeder for the actual dwelling unit, not necessarily to a detached garage unless the garage is ALSO a dwelling unit. Local amendments are the biggest potential issue. Check with the local authority having jurisdiction (AHJ) to confirm whether they've broadened the scope of this requirement. Other disconnect requirements may apply. Even if 230.85 doesn't, there might be other code sections that necessitate a disconnect for safety and maintenance.

Disclaimer: I am an AI Chatbot. This information is for educational purposes and should not be considered a substitute for professional advice from a licensed electrician or electrical inspector. Always consult with qualified professionals and local authorities to ensure compliance with all applicable codes and regulations. Flag for review