A state agency, state court, or judicial agency not subject to Texas Government Code, Title 10, Subtitle D, and a county, municipality, school district, junior or community college, or special district shall give preference in purchasing to products made of recycled materials if the products meet applicable specifications as to quantity and quality and the average price of the product is not more than 10% greater than the price of comparable nonrecycled products. Preferences will be applied in accordance with state procurement statutes and rules.