California Code, Government Code - GOV § 65919.5

The board of supervisors or city council to which the proposed action is referred pursuant to Section 65919.3 shall have 45 days from the date the county or city, as the case may be, mails or delivers the proposed action, or such longer time as the county or city, as the case may be, specifies or allows at the request of the affected city or county, as the case may be, to review and to comment and to make recommendations on the consistency of the proposed action with applicable general and specific plans and zoning ordinances of the affected city or county. If the affected city or county does not provide the comments and recommendations to the referring county or city within the 45-day period, or such longer time as the referring county or city has specified or allowed at the request of the affected city or county, the board of supervisors or city council may act without considering those comments.

If the affected city or county provides the comments and recommendations prior to the time that the planning commission acts on the proposed action, the planning commission shall also consider the comments and recommendations.