It is in what I would call negative wording at https://www.ftb.ca.gov/tax-pros/california-tax-education-council.html#:~:text=Registered%20tax%20pre...

Who is required to register with CTEC?

Any non-exempt tax preparer in California who, for a fee or for other consideration:

• Assists with or prepares state or federal income tax returns
• Assumes final responsibility for such returns
• Offers these services

Since you are not in California you do not need to register.