Change Summary

• AFCI requirements for mobile homes were expanded to reference AFCI requirements of 210.12.

Expert Analysis

Similar to GFCI requirements, AFCI protection at mobile and manufactured homes has not kept pace with the expansion of AFCI protection at conventional dwelling units. Equal AFCI protection is warranted at all dwelling unit locations regardless of the type of dwelling unit that is involved.

To that end, the provisions for AFCI protection at mobile and manufactured homes were revised at 550.25(B) by eliminating the “laundry list” of rooms
and locations requiring AFCI protection at mobile and manufactured homes and simply requiring “all 120-volt branch circuits that supply 15- and 20 ampere outlets to comply with 210.12.”