The National Labor Relations Act (NLRA) provides employees with the right to engage in “protected concerted activity,” including the right to discuss wages, hours, and terms and conditions of employment. It is often considered the “union law” in that it provides employees with the right to form a union and it regulates the union–management relationship. Because of this strong association with unions, non-union employers’ human resource directors rarely think of the act when making decisions on whom to hire, fire, promote, demote, or discipline. While it was true that in the past the National Labor Relations Board (NLRB, the agency that enforces the NLRA) rarely involved itself in disputes that did not include union organizing, collective bargaining, or any other union–management dispute, this is no longer case. The NLRB is now enforcing the NLRA’s protection of “concerted activity” to non-union employers, who indeed must understand and comply with the act.