Where does it say an outlet next to a sink has to be GROUNDED in a kitchen, bathroom & laundry. Code section in national electrical code
There is nothing that limits the location, all recepts have to be connected to an Equipment Grounding Conductor. NEC code reference-
406.4 General Installation Requirements
Receptacle outlets shall be located in branch circuits in accordance with Part III of Article 210. General installation requirements shall be in accordance with 406.4(A) through (F).
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(A) Grounding Type
Except as provided in 406.4(D), receptacles installed on 15- and 20-ampere branch circuits shall be of the grounding type. Grounding-type receptacles shall be installed only on circuits of the voltage class and current for which they are rated, except as provided in 210.21(B)(1) for single receptacles or Table 210.21(B)(2) and Table 210.21(B)(3) for two or more receptacles.
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(B) To Be Grounded
Receptacles and cord connectors that have equipment grounding conductor contacts shall have those contacts connected to an equipment grounding conductor.
Exception No. 1: Receptacles mounted on portable and vehicle-mounted generator sets and generators in accordance with 250.34.
Exception No. 2: Replacement receptacles as permitted by 406.4(D).
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