No, not legally. There is a website where some people choose to register themselves as slaves. You get a registration number and (I think) a little barcode that you can print out. For some, they see it as a commitment of sorts, for others (like myself) it is seen as a novelty.
this slave is wondering what the site addy is if anyO/one knows please let her know........mere curiousity is getting the better of this tigress....lol