This is a notice of an emergency amendment to 527 CMR 12. This emergency regulation change is covered by exception 1 under Article 700.9(D). This change affects feeder circuits for legally required stand by purposes in compliance with Article 701 or for the equipment system of a hospital.
I would encourage you to share a copy of this advisory with your electrical inspector, so that they may update their code, as well.
Should you have any questions regarding this issue or need assistance with the Blasting Damage Complaint review process, please feel free to call the Code Compliance and Enforcement Unit or Technical Services at either (978) 567-3300 or in Western Mass. (413) 587-3181.