On January 11th the Supreme Court handed down its decision in Mayo v. U.S. The decision reaffirmed the Court’s use of the Chevron standard, under which government agencies are given broad authority to make any “reasonable interpretations” of statutes so long as Congress does not specifically and clearly address the issue in the relevant legislation. The decision is significant because lower courts had previously spliton whether the Treasury Department, in implementing the Internal Revenue Code (IRC), was subject to the more exacting standard found in National Muffler. Under the National Muffler standard, government agencies’ only had the latitude to make interpretations that “harmonize with the plain language of a statute, its origin, and its purpose.”
In Mayo v. U.S. the plaintiff, Mayo Foundation for Medical Education and Research, was challenging a Treasury Department regulation that would classify medical residents (individuals that have recently graduated from medical school and seek additional instruction in a specialization) as employees. The Treasury Department implemented this regulation pursuant to a statutepassed by Congress, which exempted from consideration as employees individuals whose “services performed in the employ of… a school, college, or university… if such service is performed by a student that is enrolled and regularly attending classes at [the school].” Dating back to 1951 the Treasury Department had exempted students (including medical residents) from being classified as employees of schools, colleges, and universities, if their work was “incident to and for the purpose of pursuing a course of study.” However in 2004 the Treasury Department passed a regulationthat eliminated this exemption for “students” that worked 40 hours per week or more. Utilizing the Chevron standard, the Court in Mayo concluded that it was reasonable for the Treasury Department to change course and consider individuals working 40 hours or more per week as not “regularly attending classes.”
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