Section 16046 Of Article 2.5. Uniform Prudent Investor Act From California Probate Code >> Division 9. >> Part 4. >> Chapter 1. >> Article 2.5.

. (a) Except as provided in subdivision (b), a trustee who invests and manages trust assets owes a duty to the beneficiaries of the trust to comply with the prudent investor rule.
  (b) The settlor may expand or restrict the prudent investor rule by express provisions in the trust instrument. A trustee is not liable to a beneficiary for the trustee's good faith reliance on these express provisions.