- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
Possibilities include:I am pretty sure that 70A is an extract from 70 covering only the stuff in 70 that applies to 1 and 2 family residences. I don't think NFPA does it anymore though. Not sure why they ever did it.
1. To sell more books.
2. To allow jurisdictions to more easily choose NEC for residential and International codes for commercial, or
3. To cite 70A by reference in their residential building code(s).