(1) School districts and public charter schools must not discriminate 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 through the use of any textbooks or instructional materials, including reference materials and audio-visual materials.

(2) Each school district and public charter school must adopt an instructional materials policy that includes selection criteria designed to eliminate bias based on 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, and the use of a trained dog guide or service animal in all textbooks and instructional materials including reference materials and audio-visual materials. Each school district and public charter school must use the screening criteria adopted under this section to identify and eliminate bias in all textbooks and instructional materials, including reference materials and audio-visual materials.

(3) If instructional materials that contain bias cannot be replaced immediately, each school district and public charter school must acquire supplemental instructional materials or aids to be used concurrent with existing materials to counter the bias content.

(4) Nothing in this section is intended to prohibit the use or assignment of supplemental instructional materials, such as classic and contemporary literary works, periodicals, and technical journals, that are educationally necessary or advisable even though they contain bias.