California Code, Business and Professions Code - BPC § 6750

(a) An application for licensure as a professional engineer or certification as an engineer-in-training shall be made to the board on the prescribed form, with all statements made therein under oath, and shall be accompanied by the fee prescribed by this chapter.  An application for licensure as a professional engineer shall specify, additionally, the branch of engineering in which the applicant desires licensure.

(b) The board may authorize an organization specified by the board pursuant to Section 6754 to receive directly from applicants payment of the examination fees charged by that organization as payment for examination materials and services.