California Code
ARTICLE 3 - Scope of Regulation
Section 7835.

7835. All geologic plans, specifications, reports, or documents shall be prepared by a professional geologist or licensed certified specialty geologist, or by a subordinate employee under his or her direction. In addition, they shall be signed by the professional geologist or licensed certified specialty geologist and stamped with his or her seal, both of which shall indicate his or her responsibility for them.

(Amended by Stats. 2016, Ch. 236, Sec. 10. (SB 1165) Effective January 1, 2017.)