I e-mail U.S. Specs (an RI I was talking to) and asked them about the old petition they had in for the RHD Z32 a while back. It got dropped off the NHTSA website saying not enough info provided by the RI. Anyway, I e-mailed them again and they told me they are still working on it and expect to hear something by March. You can e-mail them at: usspecs@aol.com