Every C-36 plumbing contractor, C-45 sign contractor, and C-57 well-drilling contractor licensed under this chapter shall have displayed on each side of each motor vehicle used in his or her business, for which a commercial vehicle registration fee has been paid pursuant to Article 3 (commencing with Section 9400) of Chapter 6 of Division 3 of the Vehicle Code, his or her name, permanent business address, and contractor’s license number, all in letters and numerals not less than 112 inches high.
The identification requirements of this section shall also apply to any drill rig used for the drilling of water wells.
Failure to comply with this section constitutes a cause for disciplinary action.
Source:
Section 7029.5, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=7029.5..