this info is for you
If you are in the US :
This is information about importing the JDM car into the US.
As you may know, all the Japanese specifications vehicles (JDM car) are Right Hand Drive. Unfortunately, it is difficult to import JDM cars into the US at present except the 25 years or older model, race cars, show cars, and kit cars. It is because you have to obtain the approval from the DOT and the EPA in order to import the JDM car and it needs to legalize a car when it will reach to the US port.
Let me advise you that unless you wish to present crash test data for any Right Hand Drive car, it cannot legally be imported to the US. This is prohibitively expensive as a vehicle must be crashed to obtain the data, and we do not support the crash test data. Also the JDM car probably do not meet the US emission standard. And after 1996 models probably need to install the OBD2 system in order to pass the emission standard.
For your information, here is a link of the US importing information.
EPA :
http://www.epa.gov/otaq/imports/quikover.htm
DOT :
http://www.nhtsa.dot.gov/cars/rules/import/
US customs :
http://www.customs.ustreas.gov/xp/cgov/import/
As of Oct 2003 the only RHD JDM allowed for import into US is 1990-1999 Skyline GTS GTR. The vehicle must go to US conversion company (est 8k-18k USD) to meet US DOT standards. And you have to give them a returnable "bond" of 150% of vehicle value until conversion is done. If you get caught with an illegal one on the roads it will be confiscated and destroyed at your cost.