It shall be an unfair labor practice for an employer:
(1) to interfere with, restrain, or coerce employees in the exercise of their rights guaranteed by section 903 of this title, or by any other law, rule, or regulation;(2) to dominate or interfere with the formation or administration of any employee organization or contribute financial or other support to it; provided that an employer shall not be prohibited from permitting employees to confer with the employer during working hours without loss of time or pay;(3) by discrimination in regard to hire and tenure of employment or any term or condition of employment to encourage or discourage membership in any employee organization;(4) to discharge or otherwise discriminate against an employee because the employee has filed charges or complaints or given testimony under this chapter;(5) to refuse to bargain collectively with representatives of the employees subject to the provisions of subchapter 3 of this chapter;(6) to discriminate against an employee on account of race, color, creed, religion, age, disability, sex, sexual orientation, gender identity, or national origin;(7) to request or require an applicant, prospective employee or employee to have an HIV-related blood test as a condition of employment;(8) to discriminate against an applicant, prospective employee or employee on the basis of a person's having a positive test result from an HIV-related blood test.Added 1969, No. 113, § 1; amended 1987, No. 176 (Adj. Sess.), § 3; 1991, No. 135 (Adj. Sess.), § 2; 1999, No. 19 , § 1; 2007, No. 41 , § 2.