Example. Trust A is organized in accordance with a collective bargaining agreement between labor union K and multiple employers. Trust A forms part of a plan that is established and maintained pursuant to the agreement and which covers employees of the signatory employers who are members of K. Representatives of both the employers and K serve as trustees. A receives contributions from the employers who are subject to the agreement. Retirement benefits paid to K's members as specified in the agreement are funded exclusively by the employers' contributions and accumulated earnings. A also provides information to union members about their retirement benefits and assists them with administrative tasks associated with the benefits. Most of A's activities are devoted to these functions. From time to time, A also participates in the renegotiation of the collective bargaining agreement. A's principal activity is to receive, hold, invest, disburse, or otherwise manage funds associated with a retirement savings plan. In addition, A does not satisfy all the requirements of the exception described in paragraph (b)(2) of this section. (For example, A accepts contributions from employers.) Therefore, A is not a labor organization described in section 501(c)(5).
26 C.F.R. §1.501(c)(5)-1