In the case of the Railway Labor Act this national right to work law, will require that a great deal of prior labor legislation be rewritten. The RLA, enacted in 1927, has the following language in USC 152, Section 11c, cited as (2) Eleventh:

Eleventh. Union security agreements; check-off
Notwithstanding any other provisions of this chapter, or of any other statute or law of the United States, or Territory thereof, or of any State, any carrier or carriers as defined in this chapter and a labor organization or labor organizations duly designated and authorized to represent employees in accordance with the requirements of this chapter shall be permitted—

(a) to make agreements, requiring, as a condition of continued employment, that within sixty days following the beginning of such employment, or the effective date of such agreements, whichever is the later, all employees shall become members of the labor organization representing their craft or class: Provided, That no such agreement shall require such condition of employment with respect to employees to whom membership is not available upon the same terms and conditions as are generally applicable to any other member or with respect to employees to whom membership was denied or terminated for any reason other than the failure of the employee to tender the periodic dues, initiation fees, and assessments (not including fines and penalties) uniformly required as a condition of acquiring or retaining membership.
(b) to make agreements providing for the deduction by such carrier or carriers from the wages of its or their employees in a craft or class and payment to the labor organization representing the craft or class of such employees, of any periodic dues, initiation fees, and assessments (not including fines and penalties) uniformly required as a condition of acquiring or retaining membership: Provided, That no such agreement shall be effective with respect to any individual employee until he shall have furnished the employer with a written assignment to the labor organization of such membership dues, initiation fees, and assessments, which shall be revocable in writing after the expiration of one year or upon the termination date of the applicable collective agreement, whichever occurs sooner.


This language has been modified by several court cases that have changed the requirement to join a union (Abood v.Chicago) in a unanimous decision upheld the union shop concept with the proviso and distinction that a person did not have to become a member, but had to provide financial support for those portions of dues that supported collective bargaining.


The restriction on union use of funds for non-collective-bargaining purposes was based on First Amendment protections regarding freedom of speech and association. The Court found, "[The] notion that an individual should be free to believe as he will, and that, in a free society, one's beliefs should be shaped by his mind and his conscience, rather than coerced by the State ... thus prohibit[s] the appellees from requiring any of the appellants to contribute to the support of an ideological cause he may oppose as a condition of holding a job as a public school teacher ... the Constitution requires ... that such [political union] expenditures be financed from charges, dues, or assessments paid by employees who do not object to advancing those ideas and who are not coerced into doing so against their will by the threat of loss of governmental employment. [5]
Thus, in the United States' public sector, employees of the employer are entitled to not be members of the union, but they can be required to pay the documented costs of contract administration and negotiation. If they object, typically such a determination is submitted for hearing to a neutral arbitrator who will take evidence and render a final and binding decision as to the propriety of the fees assessed.