On Fri, Sep 5, 2014 at 5:29 PM, Eric Smith <spacewar at gmail.com> wrote:
Note that code allows for ungrounded three-prong
outlets with GFCI.
I forgot to mention that in that case, code requires that you mark the
GFCI outlet "no equipment ground". It also has to be marked "GFCI
protected", but that marking should be present when you purchase the
outlet.