California Codes, Business and Professions Code - BPC, Division 3 — Professions and Vocations Generally, Chapter 7 — Professional Engineers, Article 3 — Application of Chapter, Section 6735.6

If a registered civil engineer is required to provide as built, as constructed, or record plans for improvements or grading, which plans show changes during the construction process, the following shall apply:

(a) If the registered civil engineer provided construction phase services on the project that include supervision of the construction of engineering structures, the plans shall be based upon the field observations of the registered civil engineer and his or her agents, and information received from the project owner, project contractors, and public agencies.

(b) If the registered civil engineer did not provide construction phase services on the project that include supervision of the construction of engineering structures, the plans shall be based on information received from the project owner, project contractors, and public agencies, but need not be based upon a field verification or investigation of the improvements or grades, unless the registered civil engineer is engaged to provide such field verification services.

(c) The registered civil engineer shall not be required to include a certificate or statement on as built, as constructed, or record plans that is inconsistent with or varies from the provisions of this section.