In NJ you are allowed to change up to 5 devices (receptacles, switches, light fixture,etc.) before a permit is needed. You can replace ballasts and bulbs all you want. All of this is considered "minor repairs". However, you need a permit to change a receptacle into a GFCI type. The only people in NJ who are allowed to do electrical work are licensed electrical contractors, with business permits or the homeowner who lives in the house that is a one family dwelling and that family is his/hers.
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