To preserve and protect the free choice of individual employees to form, join, or assist labor organizations, or to refrain from such activities.

National Right-to-Work Act - Amends the National Labor Relations Act and the Railway Labor Act to repeal those provisions that permit employers, pursuant to a collective bargaining agreement that is a union security agreement, to require employees to join a union as a condition of employment (including provisions permitting railroad carriers to require, pursuant to such an agreement, payroll deduction of union dues or fees as a condition of employment).