Decertification

The National Labor Relations Board, an agency within the United States government, was created in 1935 as part of the National Labor Relations Act. Among the NLRB’s chief responsibilities is the holding of elections to permit employees to vote whether they wish to be represented by a particular labor union. Congress amended the Act in 1947 through the Taft–Hartley Act to give workers the ability to decertify an already recognized or certified union as well. This article describes, in a very summary manner, the procedures that the NLRB uses to hold such elections, as well as the circumstances in which a union may obtain the right to represent a group of employees without an election.

To obtain an NLRB-conducted election, the union must file a petition supported by a showing of interest from at least thirty percent of the employees in the group that the union seeks to represent, typically called the bargaining unit. Unions typically use authorization cards, individual forms in which a worker states that he or she wishes to be represented by the union, as evidence of employee support. A card or petition that simply states that the signer wanted an election would not be valid. Similarly if an employee signed the card because the union had told him that the only reason to sign the card was to have an election, the Board will not count that card. The cards must be signed and dated within six months of when the union files its petition to be valid; if a worker subsequently signs a card for another union the NLRB will not count the card in support of either union.

The Board also treats cards as invalid if they were obtained with illegal assistance from the employer: for example, if the employer gave the petitioning union access to its facility that it did not permit other unions or other organizations to have, or if it made threats or promises that coerced employees into signing these cards. Cards collected with the help of low level supervisors may also be “tainted”, even if the employer is opposed to the union, depending on what the supervisor said or did and the nature of the employer’s response. Some union promises, such as a promise to waive union initiation fees for employees who sign a card before a certain date, may also make an authorization card invalid.

...
Wikipedia