The June deadline was for California to join an RTO, which they never did. Last April 30th (the last day on which to comply with the FERC order) California claimed that their Cal-ISO was an RTO (which it's not and never could be due to lack of independence).
FERC let them slide on this one too, as well as the "underscheduling" penalties. FERC is looking to me like a paper tiger.
P.S. This platts.com website is new to me, and looks pretty good at first blush.