The good news is, would-be visitors to the US who have a matter of days or weeks to handle paperwork may be able to meet the new import requirements fairly quickly. The first step is to access the Bureau of Alcohol, Tobacco and Firearms web site (ATF Online - www.atf.treas.gov/). At this writing, the home page of that site has a press release explaining the new requirements, as well as a hyperlink allowing one to download the necessary form to apply for a permit (ATF F6 - Part 1). ATF has indicated they will accept completed applications by fax at: 202-927-2697.
Just be aware that ATF F6 is complicated, even to us here at The Hunting Report who read English as a primary language. It is sure to be doubly confusing to those who read English as a second language. Moreover, the form (which is designed for use by commercial importers) does not address the need, under the new regulations, to provide proof that you will be hunting or attending a recognized shooting event here in the US to be eligible for an import permit. Our advice is to attach that proof anyway, and draw attention to it in an attached letter.