Fidelity ScholorShare link
It says:
ScholarShare College Savings Plan
* Any earnings grow tax-deferred
* Federal and California state tax-free qualified distributions
* Professional money management
* Wide range of portfolios for your investments including Index Fund and Actively Managed Fund Portfolios
* Low-cost investment options
* High contribution limits
* No income restrictions
* Funds can be used at any accredited colleges nationwide, and many international institutions for qualified expenses
In deed state tax is free.
It says:
ScholarShare College Savings Plan
* Any earnings grow tax-deferred
* Federal and California state tax-free qualified distributions
* Professional money management
* Wide range of portfolios for your investments including Index Fund and Actively Managed Fund Portfolios
* Low-cost investment options
* High contribution limits
* No income restrictions
* Funds can be used at any accredited colleges nationwide, and many international institutions for qualified expenses
In deed state tax is free.
