(1) School districts and public charter schools must not, on the basis of sex, race, creed, religion, color, national origin, honorably discharged veteran or military status, sexual orientation, gender expression, gender identity, the presence of any sensory, mental, or physical disability, or the use of a trained dog guide or service animal, exclude any person from participation in, deny any person the benefit of, or subject any person to discrimination in employment, recruitment, promotion, advancement, consideration, or selection, whether full time or part time, in connection with employment by a school district or public charter school.

(2) Each school district and public charter school must make all employment decisions in a nondiscriminatory manner and must not limit, segregate, or classify any person in any way that could adversely affect a person's employment opportunities or status on the basis of sex, race, creed, color, national origin, honorably discharged veteran or military status, sexual orientation, gender expression, gender identity, the presence of any sensory, mental, or physical disability, or the use of a trained dog guide or service animal.

(3) School districts and public charter schools must not enter into any contractual or other relationship that directly or indirectly has the effect of subjecting any person to discrimination in connection with employment on the basis of sex, race, creed, religion, color, national origin, honorably discharged veteran or military status, sexual orientation, gender expression, gender identity, the presence of any sensory, mental, or physical disability, or the use of a trained dog guide or service animal including, but not limited to, relationships with employment and referral agencies, labor unions, and organizations providing or administrating fringe benefits to employees.

(4) School districts and public charter schools must not grant preferential treatment to applications for employment based on an applicant's enrollment at any education institution or entity that only or predominately admits students on the basis of sex, race, color, or national origin if the giving of such preferences has the effect of discriminating on the basis of sex, race, color, or national origin.