See as the 2008 edition of the NEC now requires tamper proof receptacles in new installations a question comes up with what to replace an existing receptacle with? Say as I have a box of regular receptacles left in my truck and don't want to throw them out is it acceptable by code to be able to use them for replacements? Wouldn't it be the same as replacing a 2 prong receptacle with a 2 prong receptacle?