Title 50 (CFR 16.13) of the United States Code of Federal Regulations (CFR) are the laws that give Service authority to regulate certain imports (Salmonid Fishes) into the United States. Such law prohibits the importations because they are considered injurious or potentially injurious to the aquatic resources of the U.S. because they host pathogens which can harm US Fisheries.

Live Salmonids and their gametes must by be tested by a Title 50 Certifying Official and have been tested negative for OMV, VHSV, IHNV, IPNV. In certain circumstances, USFish and Wildlife Service may require testing for EHNV, Piscirickettsiosis, BKD, ISAV and Whirling Disease.

Since 2017, BC CAHS has been conducting the diagnostic testing for export under the US Title 50 Regulations. BC CAHS has been recognized as a Title 50 certifying official by the United States (US) export certification process for exports to the US of live finfish (including salmonid species). Title 50 is also required for the germplasm or genetic material for culture, stocking, enhancement and research and dead uneviscerated salmonids or parts thereof (including offal) for any end use.