No employers, labor unions, employment agencies and others subject to this chapter shall:
(a) Discriminate against any person with regard to the hire, discharge, tenure, up- grading terms or conditions of employment or union membership, solely on the grounds of race, religious creed, color, national origin or ancestry;
(b) Publish or cause to be published any notice or advertisement relating to employment or membership which contains any specifications or limitations as to race, religious creed, color, national origin or ancestry;
(c) Require of any applicant, as the conditions of employment or membership, any information concerning his race, religious creed, color, national origin or ancestry;
(d) Fail or refuse to classify properly, refer for employment or otherwise discriminate against any individual because of his race, color, religion, national origin or ancestry;
(e) Discriminate against any individual or limit, segregate or classify its membership in any way which would deprive or tend to deprive such individual of employment opportunities, or would limit his employment opportunities or otherwise adversely affect his status as an employee or as an applicant for employment, or would affect adversely his wages, hours or employment conditions, because of such individual's race, religious creed, color, national origin or ancestry;
(f) Penalize or discriminate in any manner against any individual because he has opposed any practice forbidden by this chapter, or because he has made a charge, testified or assisted in any manner in any investigation, proceeding or hearing thereunder;
(g) Aid, abet, encourage or incite the commission of any discrimination in employment practice prohibited by this chapter.
It is specifically provided that, if the provisions of this chapter are not otherwise violated it shall not be an unfair employment practice for any employer to select for employment or employ any person who possesses qualifications, training or experience which best adapts him for the welfare and interest of such employer's business or provision.
(1963 Code §143.12)