The current edition of the Ventura County Building Code is the 2019 edition, which will remain in effect through December 31, 2022.  For permit applications submitted after December 31, 2022, the applicable Code is the 2022 VCBC.
You can view a listing of the main components adopted with the VCBC to see which State Codes, International Codes, and Appendix Chapters make up the entirety of the VCBC.

You can view a copy of the 2022 VCBC here.
You can view a copy of the 2019 VCBC here.