Cal. Health & Safety Code § 25507.1

(a) A unified program agency shall exempt a business operating a farm for purposes of cultivating the soil or raising or harvesting any agricultural or horticultural commodity from filing the information in the business plan required by paragraphs (3) and (4) of subdivision (a) of Section 25505 if all of the following requirements are met:
1. (1) The agricultural handler annually submits the facility information and inventory required by Section 25506 to the statewide information management system.
2. (2) Each building in which hazardous materials subject to this article are stored is posted with signs, in accordance with regulations that the secretary shall adopt, that provide notice of the storage of any of the following:
  1. (A) Pesticides.
  2. (B) Petroleum fuels and oil.
  3. (C) Types of fertilizers.
3. (3) The agricultural handler provides the training programs specified in paragraph (4) of subdivision (a) of Section 25505.
(b) The unified program agency may designate the county agricultural commissioner to conduct the inspections of agricultural handlers. The agricultural commissioner shall schedule and conduct inspections in accordance with Section 25511.