Section 15-156 - Liquid roofing systems; violation; classification; definitionA. A person shall not knowingly apply or allow to be applied a liquid roofing system that the person knows or with the exercise of reasonable care should know contains at least one-tenth of one per cent by weight or volume of any diisocyanate on a building that is owned or operated by a public school while a teacher or student is present in the building.B. A person shall not knowingly allow any teacher or student to remain in a building that is owned or operated by a public school during, and for at least two hours after, a liquid roofing system has been applied that the person knows or with the exercise of reasonable care should know contains at least one-tenth of one per cent by weight or volume of any diisocyanate.C. Current material safety data sheets must be supplied to the school prior to the application of liquid roofing systems containing more than one-tenth of one per cent by weight or volume of any diisocyanate on a building owned or operated by a public school. Applicators of liquid roofing systems must follow all applicable occupational safety and health administration regulations. All federal, state, and local regulations governing the use, shipment, and disposal of diisocyanates shall be followed and strictly adhered to.D. A person who violates this section is guilty of a class 2 misdemeanor.E. For the purposes of this section, "diisocyanate" means any diisocyanate used in a liquid applied roofing system including methylene bisphenyl diisocyanate, also known as methylene diphenyl diisocyanate or MDI, polymeric methylene bisphenyl diisocyanate, also known as polymeric MDI, or hexamethylene diisocyanate or HDI.