2 questions...

1. In MA, if you replace ungrounded receptacles with ungrounded receptacles as permited in the Code, are they required to be tamper proof.

2. If you add receptacles in an existing dwelling, are the new receptacles required to be tamper proof.

No guessing, I would like back-up info.

Wireman:

Welcome to ECN Forums. I'm sure one of our Mass. members will set you straight.

1] No, 406.3[D] says you can replace a non-grounding receptacle with another non-grounding receptacle. No on the TR also, since they don’t exist in a non-grounding receptacle, as far as I know anyway. There is also the option of using a GFCI receptacle in place of a non-grounding receptacle.

2] That would be a yes, since the added receptacles are new work, not existing. They would need to be TR and also don’t forget that if AFCI or GFCI protection would currently be required for that location, you need to address that as well.