The National Labor Relations Board was created by Congress to administer the National Labor Relations Act, the basic law governing relations between labor unions and the employers whose operations affect interstate commerce. The Board has two principal functions: (1) to determine, through secret ballot elections, the free democratic choice by employees as to whether or not they wish to be represented by a union in dealing with their employers and, if so, by which union; and (2) to prevent and remedy unlawful acts, called unfair labor practices, by either employer or unions.