into the United States, to determine whether the person or means of conveyance is carrying any animal or article regulated under this chapter;

in interstate commerce, on probable cause to believe that the person or means of conveyance is carrying any animal or article regulated under this chapter; or

in intrastate commerce from any State, or any portion of a State, quarantined under section 8306(b) of this title, on probable cause to believe that the person or means of conveyance is carrying any animal or article quarantined under section 8306(b) of this title.