Arnold & Porter Kaye Scholer attorneys convinced a federal appeals court to greenlight a  challenge to a Customs and Border Patrol decision that bans Mexican residents from crossing the U.S. border to donate plasma.

“The plasma companies depend heavily on B‑1 visitors in the border region. They have invested hundreds of millions of dollars to construct and staff dozens of facilities geared toward collecting plasma from Mexican donors,” wrote Judge Neomi Rao, in a unanimous panel opinion for the U.S. Court of Appeals for the D.C. Circuit, siding with a handful of American plasma collection companies in their fight against the June 2021 policy. “By denying plasma donors the benefit of the B‑1 classification, CBP’s policy directly harms the companies’ businesses by depriving them of plasma they need to manufacture and develop their therapeutic products.”