Cal. Health & Safety Code § 110970

This article applies only to ice that is intended for human consumption and is sold in packaged form. This article shall not apply to persons, hotels, restaurants, caterers, food service contractors, and theaters that manufacture, sell, or furnish ice solely to, or for, their customers in a manner that is incidental to the manufacturing, furnishing, or sale of other goods or services. This article shall not apply to ice dispensing or vending machines, except those that dispense or vend packaged ice, or to the icing of vehicles used to transport food.