(a) A business plan shall contain all of the following information:

1. (1) The inventory of information required by this article and additional information the governing body of the unified program agency finds necessary to protect the health and safety of persons, property, or the environment. Locally required information shall be adopted by local ordinance and shall be subject to the trade secret protection specified in Section 25512. The unified program agency shall notify the secretary within 30 days after those requirements are adopted.
2. (2) A site map that contains north orientation, adjacent streets, access and exit points, evacuation staging areas, hazardous material handling and storage areas, emergency response equipment, and, if present, loading areas, internal roads, storm and sewer drains, and emergency shutoffs, as well as additional map requirements the governing body of the unified program agency finds necessary. Any locally required additional map requirements shall be adopted by local ordinance. This ordinance and related public processes are subject to the limitations on the disclosure of hazardous material location information specified in subdivision (b) of Section 25509. The unified program agency shall notify the secretary both before publishing a proposed ordinance to require additional map requirements and within 30 days after those requirements are adopted. A site map shall be updated to include the additional information required pursuant to the local ordinance no later than one year after the adoption of the local ordinance.

3. (3) Emergency response plans and procedures in the event of a release or threatened release of a hazardous material, including, but not limited to, all of the following:

   1. (A) Immediate notification contacts to the appropriate local emergency response personnel and to the unified program agency.
   2. (B) Procedures to mitigate a release or threatened release to minimize any potential harm or damage to persons, property, or the environment.
   3. (C) Evacuation plans and procedures, including immediate notice, for the business site.
4. (4) Training for all new employees and annual training, including refresher courses, for all employees in safety procedures in the event of a release or threatened release of a hazardous material, including, but not limited to, familiarity with the plans and procedures specified in paragraph (3). These training programs may take into consideration the position of each employee. This training shall be documented electronically or by hard copy and shall be made available for a minimum of three years.