Executive Summary: The Sixth Circuit Court of Appeals has affirmed the decision of the National Labor Relations Board (NLRB) in Specialty Healthcare, which requires employers to prove employees share an “overwhelming community of interest” to successfully challenge the composition of a bargaining unit. The court held that: (1) the Board may depart from its own precedent if it explains its decision and the departure is not arbitrary and capricious; (2) the Board’s clarification and use of its “overwhelming community-of-interest” standard was clearly explained and therefore not an abuse of its discretion: (3) the Board did not violate the National Labor Relations Act (the Act) because it based its decision on factors beyond the extent of the union’s organization efforts; and (4) the Board did not abuse its discretion by choosing to follow an already existing principle through adjudication instead of rulemaking. See Kindred Nursing Centers East v. NLRB (Aug. 15, 2013).