A.Redwood Kardon responds: In my jurisdiction (Oakland, Calif.), two-slot receptacles are readily available and must be maintained on existing ungrounded receptacles, unless the outlet is upgraded with a ground per the NEC. The "epoxy business" sounds funky to me. It is not an acceptable practice where I work, and there is certainly no such "fix" in the NEC. This issue most often surfaces when someone wants to install a dedicated computer outlet. In that case, a separate ground may be run, as noted above, and a three-prong outlet installed.
Redwood Kardon is a code official in Oakland, Calif. For more code-related information, visit his Web page at www.CodeCheck.com.
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