California Code, Education Code - EDC § 32064

(a) For the 1987-88 academic year and for each academic year thereafter, no art or craft material that is deemed by the State Department of Health Services to contain a toxic substance, as defined by the California Hazardous Substance Act, Chapter 4 (commencing with Section 108100) of Part 3 of Division 104 of the Health and Safety Code, or a toxic substance causing chronic illness, as defined in this article, shall be ordered or purchased by any school, school district, or governing authority of a private school in California for use by students in kindergarten and grades 1 to 6, inclusive.

(b) Commencing June 1, 1987, any substance that is defined in subdivision (a) as a toxic substance causing chronic illness shall not be purchased or ordered by a school, school district, or governing authority of a private school for use by students in grades 7 to 12, inclusive, unless it meets the labeling standards specified in Section 32065.

(c) If the State Department of Health Services finds that, because the chronically toxic, carcinogenic, or radioactive substances contained in an art or craft product cannot be ingested, inhaled, or otherwise absorbed into the body during any reasonably foreseeable use of the product in a way that could pose a potential health risk, the department may exempt the product from these requirements to the extent it determines to be consistent with adequate protection of the public health and safety.

(d) For the purposes of this article, an art or craft material shall be presumed to contain an ingredient that is a toxic substance causing chronic illness if the ingredient, whether an intentional ingredient or an impurity, is 1 percent or more by weight of the mixture or product, or if the State Department of Health Services determines that the toxic or carcinogenic properties of the art or craft material are such that labeling is necessary for the adequate protection of the public health and safety.