A new lawsuit challenges a government fee rule that would raise immigration filing costs for many employers. If successful, the litigation could save companies significant sums compared to the projected costs under a final rule published by U.S. Citizenship and Immigration Services on January 31, 2024. The fees in the rule become effective April 1, 2024. The fees will go into effect on April 1, 2024, unless a judge grants the plaintiffs’ motion for a request for a preliminary injunction.