To: Heads of Fire Departments
From: Stephen D. Coan, State Fire Marshal
Date: September 26, 2002
Re: 527 CMR 12

At the September 5, 2002 meeting of the Board of Fire Prevention Regulations, the following code interpretation was discussed and voted upon:

Q: Is it the intent of 527 CMR 12.00 Article 210.12 to require that hard-wired smoke detectors installed in bedrooms be protected with an arc fault circuit interrupter?

A: Yes, the circuit supplying power to a hard-wired smoke detector located in the bedroom of a dwelling unit must be protected with an arc fault circuit interrupter.

If you have any questions please contact the Code Compliance and Enforcement Unit at 978-567-3300 or in Western Massachusetts at 413-587-3181.

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