Archaeo-Blogger Paul Barford has this rather uncharitable advice for a small businessman looking for information about the the CPIA, CPAC and import restrictions. See http://paul-barford.blogspot.com/2011/12/looking-for-ccpia-duh.html
I've covered this area before, and here are some of the posts that hopefully will be of some help to those looking for some basic information:
For a short recap of the governing law, see: http://ordinarymag.blogspot.com/2008/07/short-recap-of-cultural-property.html
For a discussion of the impact of import restrictions, see http://ordinarymag.blogspot.com/2011/01/what-is-impact-of-import-restrictions.html
For discussion about how the governing law operates in practice, see
http://ordinarymag.blogspot.com/2011/03/cultural-property-implementation-act-is.html
http://ordinarymag.blogspot.com/2010/04/aba-panel-on-1970-unesco-convention-and.html