Interpretation #9453

Published October 31, 2025

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Original Request

Code Version
2023
Code
EXTBLDG
Code Description
Chapter
Section
407.1
Topic
Existing high-rise generator power

Question

Is it the intent of FEBC 407.1 to allow the direct & equal replacement of an existing generator serving an existing high-rise building with a "like for like" replacement with respect to primary fuel-source (Natural Gas)?

Note: High-Rise defined per FBC -B 8th Edition, Chapter 2

Answer Published 10/25/2025 at 7:11 AM

It is not a repair, this is a level 1 alteration, however, a replacement would not be a reduction in safety if the size and fuel source has not changed. If experience has shown that the gas utility provider is reliable, the exception to NEC 700.12(D)(2)(c) could apply as well.

Commentary

None.