Mode of access: Internet at the APHIS web site. Address as of 8/131/08: http://www.aphis.usda.gov/lpa/pubs/fsheet%5Ffaq%5Fnotice/faq%5Fphkarnal.html (HTML version) ; http://www.aphis.usda.gov/lpa/pubs/fsheet%5Ffaq%5Fnotice/faq%5Fphkarnal.pdf (PDF version); current access to PDF version available via PURL.