Cal. Pub. Util. Code § 8388
An electrical corporation, local publicly owned electric utility, or community choice aggregator with a contract to procure electricity generated from biomass pursuant to Section 399.20.3, commission Resolution E-4770 (March 17, 2016), or commission Resolution E-4805 (October 13, 2016), and expires or expired on or before December 31, 2028, shall seek to amend the contract to include, or seek approval for a new contract that includes, an expiration date five years later than the expiration date in the contract that was operative in 2022, so long as the contract extension follows the feedstock requirement of subdivision (b) of Section 399.20.3. This section shall not apply to facilities located in federal severe or extreme nonattainment areas for particulate matter or ozone.
Ca. Pub. Util. Code § 8388