Employers and employees’ collective bargaining units or unions can engage in unfair labor practices and violate the National Labor Relations Act and other collective bargaining laws. When this happens the National Labor Relations Board has the authority to investigate and resolve the issues. Employers who commit unfair labor practices have often interfere with employees’ rights to engage in collective bargaining, discriminated against employees who participate in collective bargaining, or refused to negotiate with the lawful union representatives. Unions are most often found to have committed unfair labor practices by forcing employees to be part of unions, refusing to bargain with an employer and taking certain extreme actions such as striking without the proper procedures. Of course, these are just examples of the many ways in which both sides can engage in unfair at labor practices. Collective bargaining is an important part of American business but it only works if both sides engage in fair labor practices. Accordingly, unfair labor practices are investigating and resolved by the NLRB. NLRB decisions may be appealed to the U.S. courts of appeals.