California Code, Corporations Code - CORP § 15911.20

(1) A conversion pursuant to Article 11 (commencing with Section 15911.01).

(2) A merger pursuant to Article 11 (commencing with Section 15911.10).

(3) The acquisition by one limited partnership in exchange, in whole or in part, for its partnership interests (or the partnership interests or equity securities of a partnership or other business entity that is in control of the acquiring limited partnership) of partnership interests or equity securities of another limited partnership or other business entity if, immediately after the acquisition, the acquiring limited partnership has control of the other limited partnership or other business entity.

(4) The acquisition by one limited partnership in exchange in whole or in part for its partnership interests (or the partnership interests or equity securities of a partnership or other business entity which is in control of the acquiring limited partnership) or for its debts securities (or debt securities of a limited partnership or other business entity which is in control of the acquiring limited partnership) which are not adequately secured and which have a maturity date in excess of five years after the consummation of the acquisition, or both, of all or substantially all of the assets of another limited partnership or other business entity.