Part of me always cringes when I turn on the garbage disposal with a wet hand, which got me thinking... Does this thing need to be on a GFCI? And on that same thought, does the dishwasher need to be on a GFCI? Both currently are not and wondering if they should be to meet current code.
There are no requirements in National Electrical Code (NEC) that a residential disposal must be GFCI protected. However, there may be requirements in the installation instructions, which would make GFCI protection required.
210.8(A) requires receptacles serving the kitchen countertop to be GFCI protected. It also requires GFCI protection for receptacles within 6' of a sink, but only sinks not in a kitchen.
The 2014 edition added 210.8(D), which requires dwelling unit dishwashers to be GFCI protected.
National Electrical Code 2014
Chapter 2 Wiring and Protection
Article 210 Branch Circuits
210.8 Ground-Fault Circuit-Interrupter Protection for Personnel
(D) Kitchen Dishwasher Branch Circuit GFCI protection shall be provided for outlets that supply dishwashers installed in dwelling units locations.
nec 210.8 states where GFCI are required all receptacles within 6' of a sink (to service countertops). the exception where GFCI are not required areas not easily accessable (Behind a dishwasher, fridg) or if the device is hardwired, I have 1 inspector that wants GFCI on disposal units and several others that do not require them (hard wired) I dont like putting them in on the disposals because they trip fairly often and I have found them not to last more than a few years and I get called back. Their may also be local requirements for them in your area not covered in the NEC.