California Code, Public Resources Code - PRC § 8011

The department shall investigate mapping;  shall prepare a complete report thereon including plans and recommendations for an adequate mapping program for California;  and shall adopt a general plan and program for the accomplishment of the policy declared in this article.  The general plan and program so adopted, and as from time to time modified, amended or revised by the department, shall be the authorized general plan and program to be carried out by the state departments.  The department may from time to time make such further investigations and reports upon mapping as deemed proper by it in pursuance of the policy declared in this article.