29 CFR § 452.19 - Executive functions.
The definitional phrase “a person authorized to perform the functions of president, vice president, secretary, treasurer, or other executive functions of a labor organization” brings within the term “officer” any person who in fact has executive or policy-making authority or responsibility, although he may not occupy a position identified as an officer under the constitution and bylaws of the organization. Authorization to perform such functions need not be contained in any provision of the constitution or bylaws or other document but may be inferred from actual practices or conduct. On the other hand, a person is not an officer merely because he performs ministerial acts for a designated officer who alone has responsibility. The normal functions performed by business agents and shop stewards, such as soliciting memberships, presenting or negotiating employee grievances within the work place, and negotiating contracts are not “other executive functions” as that phrase is used in section 3(n) of the Act. However, a directing business representative or a business manager usually exercises such a degree of executive authority as to be considered an officer and, therefore, must be elected. The duties normally pertaining to membership on a bargaining committee do not come within the phrase “other executive functions.” However, persons occupying such non-executive positions may be “officers” if they are ex officio members of the organization's executive board (or similar governing body) or if the constitution or bylaws of the union designate such positions as officers.
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