Cal. Health & Safety Code § 53112

Any mortgage trust certificates, mortgage-backed bonds, mortgage-backed passthrough certificates, or other obligations of the corporation secured by the loans and related deeds of trust purchased by the corporation shall be a legal investment for every executor, administrator, trustee, guardian, conservator of a natural person, receiver, fiduciary, public corporation, political subdivision, public instrumentality, charitable institution, educational and eleemosynary institution, bank, savings bank, trust company, financial institution, insurance company, public or private pension fund or profit sharing trust, or cemetery association, without court order.