(1) It shall be an unfair labor practice for an employer, individually or in concert with others:

1. (a) To interfere with, restrain or coerce employees in the exercise of the rights guaranteed in Section 34-20-7.
2. (b) To dominate or interfere with the formation or administration of any labor organization or contribute financial or other support to it; provided, that subject to rules and regulations made and published by the board pursuant to Section 34-20-6, an employer is not prohibited from permitting employees to confer with the employer during working hours without loss of time or pay.
3. (c) By discrimination in regard to hire or tenure of employment or any term of condition of employment to encourage or discourage membership in any labor organization; provided, that nothing in this act shall preclude an employer from making an agreement with a labor organization (not established, maintained or assisted by any action defined in this act as an unfair labor practice) to require as a condition of employment, membership therein, if such labor organization is the representative of the employees as provided in Subsection 34-20-9(1) in the appropriate collective bargaining unit covered by such agreement when made.
4. (d) To refuse to bargain collectively with the representative of a majority of the employer's employees in any collective bargaining unit; provided, that, when two or more labor organizations claim to represent a majority of the employees in the bargaining unit, the employer shall be free to file with the board a petition for investigation of certification of representatives and during the pendency of the proceedings the employer may not be considered to have refused to bargain.
5. (e) To bargain collectively with the representatives of less than a majority of the employer's employees in a collective bargaining unit.
6. (f) To discharge or otherwise discriminate against an employee because the employee has filed charges or given testimony under this chapter.

(2) It shall be an unfair labor practice for an employee individually or in concert with others:

1. (a) To coerce or intimidate an employee in the enjoyment of the employee's legal rights, including those guaranteed in Section 34-20-7, or to intimidate the employee's family, picket the employee's domicile, or injure the person or property of the employee or the employee's family.
2. (b) To coerce, intimidate or induce an employer to interfere with any of the employer's employees in the enjoyment of their legal rights, including those guaranteed in Section 34-20-7, or to engage in any practice with regard to the employer's employees which would constitute an unfair labor practice if undertaken by the employer on the employer's own initiative.
3. (c) To co-operate in engaging in, promoting, or inducing picketing (not constituting an exercise of constitutionally guaranteed free speech), boycotting or any other overt concomitant of a strike unless a majority in a collective bargaining unit of the employees of an employer against whom such acts are primarily directed have voted by secret ballot to call a strike.
4. (d) To hinder or prevent, by mass picketing, threats, intimidation, force, or coercion of any kind the pursuit of any lawful work or employment, or to obstruct or interfere with entrance to or egress from any place of employment, or to obstruct or interfere with free and uninterrupted use of public roads, streets, highways, railways, airports, or other ways of travel or conveyance.
5. (e) To engage in a secondary boycott; or to hinder or prevent, by threats, intimidation, force, coercion, or sabotage, the obtaining, use or disposition of materials, equipment, or services; or to combine or conspire to hinder or prevent the obtaining, use or disposition of materials, equipment or services, provided, however, that nothing herein shall prevent sympathetic strikes in support of those in similar occupations working for other employers in the same craft.
6. (f) To take unauthorized possession of property of the employer.