Cal. Bus. & Prof. Code § 23405.1
(a) Any limited partnership holding a license under this division shall maintain a register at the principal office of the limited partnership in California and the register shall be available to the department for inspection. The limited partnership shall report to the department in writing the assignment or transfer of the interest of any limited partner of the limited partnership where the assignment or transfer results in a person owning as a limited partner 10 percent or more of the capital or profits of the limited partnership. The limited partnership shall report to the department in writing any change in the general partners of the limited partnership.
The report shall be filed with the department within 30 days after the assignment or transfer of the limited partnership interest.