What This Standard Covers
- EV charger circuit ampacity requirements by connector type and charge level
- Conduit stub-up positions relative to stall layout and vehicle parking positions
- Garage door operator low-voltage wiring for home automation integration
- Occupancy sensor placement for lighting control and departure notification
- Network wiring requirements for smart chargers and IP-connected garage hardware
- Sub-panel layout guidance when EV charging requires a dedicated panel
Who It Is For
- Electricians roughing in EV charger circuits on new construction and renovation projects
- General contractors coordinating garage scope across electrical and low-voltage subs
- Architects reviewing electrical and low-voltage rough-in before drawings are finalized
- Homeowners planning multi-vehicle charging infrastructure for current and future vehicles
When To Use It
- Before concrete slab is poured so conduit sleeves are placed in the correct positions
- During framing to confirm sub-panel location and conduit routing to each stall
- At pre-drywall walk to verify network and low-voltage wiring is in place
- Before charger installation to confirm circuit ampacity and conduit fill are correct
Read or Download the PDF
The full standard, including specifications, diagrams, and field references, is in the embedded PDF below. Read it inline or download it for your jobsite folder.
Field Notes
Garage infrastructure decisions are almost always deferred too long. By the time the homeowner confirms how many vehicles they are charging and at what rate, the electrician has already roughed in the panel. This one-pager pushes those conversations to the right phase.
The most expensive mistake in a garage is a conduit that stops short. Stubbing up in the right position relative to the vehicle stall is a two-minute decision during rough-in. Fixing it after the floor is poured is a half-day job with a hammer drill.