Cal. Health & Safety Code § 1399.848

(a) Notwithstanding paragraph (1) of subdivision (c) of Section 1399.849, with respect to individual health benefit plans offered outside of the Exchange, a plan shall provide an annual enrollment period for policy years beginning on or after January 1, 2020, from November 1 of the preceding calendar year, to January 31 of the benefit year, inclusive.
(b) Notwithstanding paragraphs (2) and (3) of subdivision (c) of Section 1399.849, with respect to individual health benefit plans offered through the Exchange, for policy years beginning on or after January 1, 2023, a plan shall provide an annual enrollment period from November 1 of the preceding calendar year to January 31 of the benefit year, inclusive.
(c) Notwithstanding paragraph (3) of subdivision (c) of Section 1399.849, with respect to individual health benefit plans offered outside and through the Exchange, the effective date of coverage shall be as follows:
1. (1) No later than January 1 of the benefit year for plan selection made from November 1 to December 31 of the preceding calendar year, inclusive.
2. (2) No later than February 1 of the benefit year for plan selection made from January 1 to January 31 of the benefit year, inclusive.