California Code, Business and Professions Code - BPC § 8560

(a) Licenses issued to operators, field representatives, or applicators shall be limited to the branch or branches of pest control for which the applicant has qualified by application and examination.

(b) For the purpose of delimiting the type and character of work authorized by the various branch licenses, the practice of pest control is classified into the following branches:

(c) The board may issue a license for a combination of two or more branches for which an applicant qualifies under the provisions of this chapter, and the combination license shall be considered one license.

(d) Unless otherwise authorized by the board, all examinations shall be supplied by the board.  All examinations shall be kept for a period of one year, upon the expiration of which these records may be destroyed on order of the board.  Each applicant for license as an operator or a field representative shall be designated by a number instead of by name, and the identity thereof shall not be disclosed until the examinations are graded.  A person shall not be admitted to the examination room except members of the board, the examining personnel, and the applicants.

(e) The board shall make rules and regulations for the purpose of securing fair, impartial, and proper examinations.

(f) Licensees may be licensed in other branches upon complying with the requirements for qualification and by examination in those other branches.  A failure of the licensee to pass examination in the other branch or branches shall not have any effect on existing licenses.

(g) The examination shall be in each of the subjects specified in the branch or branches relating to the respective applications.  A license according to the applications shall be granted to any applicant who shall make a general average of not less than 70 percent on each of the subjects of the branch or branches.