Key Facts
| Statutory basis | MGL c.141 |
|---|---|
| Administering agency | MA Board of State Examiners of Electricians |
| National code base | NEC 2020 (with MA amendments) |
| Master Electrician License | Required for any electrical work over $500 |
| Journeyman Electrician License | Works under Master Electrician supervision |
| Inspector | Local electrical inspector + state board |
| NEC Article 220 (load calc) | Required before circuit additions |
| Service ampacity | NEC 230 (100A min for most residential) |
| GFCI requirements | NEC 210.8 (bathrooms, kitchens, garages, exteriors) |
| AFCI requirements | NEC 210.12 (bedrooms, living rooms) |
| Panel upgrade triggers | 40A+ EV charger, whole-home heat pump on 100A panel |
Related Sub-Entities
- NEC Article 220 (Load Calculation) — Standardized service load calc method
- NEC Article 625 (EV Supply Equipment) — EV charger circuit requirements
- NEC Article 100 (Definitions) — Common definitional anchor
- Massachusetts Master Electrician License — Statutory contractor license
Codes — Related Pro Build Services
- Electrical Services — MA Master Electrician covering all 527 CMR work.
- 200A Panel Upgrade — 527 CMR-compliant panel + permit.
- EV Charger Installation — NEC Article 625 compliant installs.