California Code, Public Resources Code - PRC § 41820.6

(a) In addition to its authority under Section 41820, the board may, after a public hearing, grant a time extension from the requirements of Section 41780 to a city if both of the following conditions exist:

(b) The board may authorize a city that meets the requirements of subdivision (a) to submit a source reduction and recycling element that includes an implementation schedule that shows that the city shall comply with the requirements of Section 41780, within three years from the date on which the source reduction and recycling element is due pursuant to subdivision (b) of Section 41791.5, through source reduction, recycling, and composting activities.