I _think_ the answer is...
that you MUST to go through a EPA/DOT registered/certified importer, and the importer must do the conversion in order for the conversion to be approved. In other words, you can't do it yourself. Conversion/certification costs are generally in the range of US$10,000, more or less depending on the vehicle.<p>Here's a link the the NHTSA vehicle import regulations page. I'm not sure if it also includes info on EPA certifications.<br>
that you MUST to go through a EPA/DOT registered/certified importer, and the importer must do the conversion in order for the conversion to be approved. In other words, you can't do it yourself. Conversion/certification costs are generally in the range of US$10,000, more or less depending on the vehicle.<p>Here's a link the the NHTSA vehicle import regulations page. I'm not sure if it also includes info on EPA certifications.<br>