Connecticut General Statutes
Chapter 561 - Labor Relations Act
Section 31-105. - Unfair labor practices.

It shall be an unfair labor practice for an employer: (1) To spy upon or keep under surveillance, whether directly or through agents or any other person, any activities of employees or their representatives in the exercise of the rights set forth in section 31-104; (2) to prepare, maintain, distribute or circulate any blacklist of individuals for the purpose of preventing any of such individuals from obtaining or retaining employment because of the exercise by such individuals of any of the rights set forth in section 31-104; (3) to dominate or actually interfere with the formation, existence or administration of any employee organization or association, agency or plan which exists in whole or in part for the purpose of dealing with employers concerning terms or conditions of employment, labor disputes or grievances, or to contribute financial or other support to any such organization, by any means, including but not limited to the following: (A) By participating or assisting in, supervising, controlling or dominating (i) the initiation or creation of any such employee organization or association, agency or plan, or (ii) the meetings, management, operation, elections, formulation or amendment of the constitution, rules or policies of any such employee organization or association, agency or plan; (B) by urging the employees to join any such employee organization or association, agency or plan for the purpose of encouraging membership in the same; (C) by compensating any employee or individual for services performed on behalf of any such employee organization or association, agency or plan, or by donating free services, equipment, materials, office or meeting space or anything else of value for the use of any such employee organization or association, agency or plan, provided an employer shall not be prohibited from permitting employees to confer with him during working hours without loss of time or pay; (4) to require an employee or one seeking employment as a condition of employment to reveal membership, past membership or nonmembership in a labor organization, either by the use of written application forms, questionnaires or oral inquiries, or to join any company union or to refrain from forming or joining or assisting a labor organization of his own choosing; (5) to encourage membership in any company union or discourage membership in any labor organization by discrimination in regard to hire or tenure or in any term or condition of employment, provided nothing in this chapter shall preclude an employer from making an agreement with a labor organization requiring as a condition of employment membership therein, if such labor organization is the representative of employees as provided in section 31-106; (6) to refuse to bargain collectively with the representatives of employees, subject to the provisions of said section 31-106; (7) to refuse to discuss grievances with representatives of employees, subject to the provisions of said section 31-106; (8) to discharge or otherwise discriminate against an employee because the employee has signed or filed any affidavit, petition or complaint or given any information or testimony under this chapter; (9) to distribute or circulate any blacklist of individuals exercising any right created or confirmed by this chapter or of members of labor organizations, or to inform any person of the exercise by any individual of such right, or of the membership of any individual in a labor organization for the purpose of preventing individuals so blacklisted or so named from obtaining or retaining employment; or (10) to do any acts other than those enumerated in this section which restrain, coerce or interfere with employees in the exercise of the rights set forth in section 31-104.

(1949 Rev., S. 7392; February, 1965, P.A. 256; P.A. 10-32, S. 102.)
History: 1965 act amended Subdiv. (4) to specify that requiring employee or potential employee to reveal membership, past membership or nonmembership in a labor organization is an unfair practice; (Revisor's note: In 1991 the lower case alphabetic Subpara. indicators in Subdiv. (3) were replaced editorially by the Revisors with upper case alphabetic indicators); P.A. 10-32 made technical changes in Subdivs. (3) and (8), effective May 10, 2010.
See Sec. 31-51 re blacklisting.
Cited. 138 C. 277. Prohibits acts by employers which coerce employees in exercise of their right of self-organization. 139 C. 95. Cited. 142 C. 457. Layoff of complainants without subsequent recall held to be, in effect, a discharge because of their union activities. 148 C. 135. Cited. 149 C. 6. Institution of shop regulations as subterfuge to discharge employee is unfair labor practice. 150 C. 597. Dispatchers held not employees; thus taxi company not in violation of statute. 151 C. 573. Cited. 162 C. 579.
Cited. 14 CS 72. The hiring of men known not to be in favor of the union in order to destroy union's majority status held to be an unfair labor practice. 19 CS 280. Cited. 20 CS 11. Failure of union to properly represent an employee held an unfair labor practice under federal statute. Id., 438. Cited. 22 CS 138.
Although defendant was a union representative, employer did not violate section by refusing to discuss grievances with him because there was no claim by defendant nor finding of the court that he was the duly designated or selected representative of the employees as required. 3 Conn. Cir. Ct. 529.
Subdiv. (5):
Union shop clause expressly provided for. 180 C. 459.
Subdiv. (6):
An unfair labor practice under Subdiv. must be a failure to bargain with a union which in fact had been selected as bargaining agent for a unit. 147 C. 344. If collective bargaining agreement does not permit individual employee to seek arbitration personally, then employee must seek relief through bargaining agent. Id., 608. Cited. 175 C. 165. Refusal to bargain collectively with certified representatives of one's employees violates section. Id., 625. Cited. 232 C. 57.
Cited. 43 CS 340.
Subdiv. (10):
Picketing to compel employer to violate provision of Subdiv. is unlawful. 146 C. 93.