Division 2.7. Courtesy Signs of California Streets And Highways Code >> Division 2.7.

(a) Local authorities, with respect to highways under their respective jurisdictions, may place and maintain, or cause to be placed and maintained, courtesy signs to recognize the sponsors of the Adopt-A-Riverway Program.
  (b) Courtesy signs shall be consistent with existing code provisions and department rules and regulations concerning signs.
  (c) Courtesy signs shall only be placed upon the highways of a local authority, upon the approval of an authorizing resolution by a majority of the members of the governing body of that local authority. The resolution authorizing the placement of courtesy signs shall include all of the following:
  (1) A general plan of where the courtesy signs will be placed within the geographical borders of the local authority, including any street, bike trail, or pedestrian path.
  (2) A finding that the planned placement of the courtesy signs would not degrade the natural environment of the area.
  (d) Courtesy signs shall contain the title "Adopt-A-Riverway" at the top of the sign and the name or logo of the sponsoring person or entity below the "Adopt-A-Riverway" title. Logos shall be provided at the sponsors' own cost. Both the title and the logo shall be in large enough fonts that are easily read.

(a) Courtesy signs may be awarded by the Department of Food and Agriculture, to persons that donate a minimum of five thousand dollars ($5,000) annually to the Adopt-A-Riverway Fund. Donors may stipulate in which county they desire the courtesy signs be placed and may request specific sign placement within the county.
  (b) The Department of Food and Agriculture may enter into an agreement with a local authority for production, placement, and maintenance of courtesy signs to be awarded pursuant to this section.
  (c) The costs incurred by the local authorities associated with placing and maintaining courtesy signs shall be paid for out of the Adopt-A-Riverway Fund.

(a) County officials, with respect to any state or county highway within their respective jurisdictions and upon a resolution adopted by the respective county board of supervisors, may place and maintain, or cause to be placed and maintained, at or near the county line and at county expense, signs stating or adding to their existing signs the following statement: "Where We Honor Veterans."
  (b) Signs or additions to signs described in subdivision (a) that are on a state highway shall only be placed or added to upon the approval of the Department of Transportation.