<P> The NMB usually uses mail ballots to conduct elections, unlike the National Labor Relations Board (NLRB), which has historically preferred walk - in elections under the NLRA . The NMB can order a rerun election if it determines that either an employer or union has interfered with employees' free choice . </P> <P> Unlike the NLRA, which gives the NLRB nearly exclusive power to enforce the Act, the RLA allows employees to sue in federal court to challenge an employer's violation of the Act . The courts can grant employees reinstatement and backpay, along with other forms of equitable relief . </P>

The railway labor act of 1926 applies to all of the following except