code question

When did the NEC start requiring a dedicated bathroom circuit?

(Please don’t post GFCI dates, the question is not about GFCI)

I’m guessing around the mid 90’s.

I thought it could be done a couple of ways: One dedicated circuit could serve one entire bathroom, lights, fans, outlets, etc. or one dedicated circuit can serve multiple bathroom receptacle outlets only, and the lights, fans, etc, can be run on another available circuit.

We have many older homes around here that have a GFCI garage circuit also feeding all bathrooms and the exterior. The code changed at some point to keep the garage and exterior off the bathroom circuit.

Found one today (1994) that had one circuit for: all bathrooms, garage, exterior, rear porch light AND a room addition (4 can lights and many receptacles).

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