The use of the words “certify” or “certification” by a licensed architect in the practice of architecture constitutes an expression of professional opinion regarding those facts or findings that are the subject of the certification, and does not constitute a warranty or guarantee, either expressed or implied. Nothing in this section is intended to alter the standard of care ordinarily exercised by a licensed architect.
Source:
Section 5536.26, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=5536.26..