39 U.S.C. § 1203 — Recognition of labor organizations

The Postal Service shall accord exclusive recognition to a labor organization when the organization has been selected by a majority of the employees in an appropriate unit as their representative.

Agreements and supplements in effect on the date of enactment of this section covering employees in the former Post Office Department shall continue to be recognized by the Postal Service until altered or amended pursuant to law.

When a petition has been filed, in accordance with such regulations as may be prescribed by the National Labor Relations Board—

the National Labor Relations Board shall investigate such petition and, if it has reasonable cause to believe that a question of representation exists, shall provide for an appropriate hearing upon due notice. Such hearing may be conducted by an officer or employee of the National Labor Relations Board, who shall not make any recommendations with respect thereto. If the National Labor Relations Board finds upon the record of such hearing that such a question of representation exists, it shall direct an election by secret ballot and shall certify the results thereof.

A petition filed under subsection (c)(1) of this section shall be accompanied by a statement signed by at least 30 percent of the employees in the appropriate unit stating that they desire that an election be conducted for either of the purposes set forth in such subsection.

Nothing in this section shall be construed to prohibit the waiving of hearings by stipulation for the purpose of a consent election in conformity with regulations and rules of decision of the National Labor Relations Board.