Cal. Health & Safety Code § 108355

If the department finds that, because of the size of the package involved or because of the minor hazard presented by the substance contained therein, or for other good and sufficient reasons, full compliance with the labeling requirements otherwise applicable under this chapter is impracticable or is not necessary for the adequate protection of the public health and safety, the department may exempt the substance from these requirements to the extent it determines to be consistent with adequate protection of the public health and safety.