California Code, Corporations Code - CORP § 174.5

“Other business entity” means a domestic or foreign limited liability company, limited partnership, general partnership, business trust, real estate investment trust, unincorporated association (other than a nonprofit association), or a domestic reciprocal insurer organized after 1974 to provide medical malpractice insurance as set forth in Article 16 (commencing with Section 1550) of Chapter 3 of Part 2 of Division 1 of the Insurance Code. As used herein, “general partnership” means a “partnership” as defined in Section 16101; “business trust” means a business organization formed as a trust; “real estate investment trust” means a “real estate investment trust” as defined in subsection (a) of Section 856 of the Internal Revenue Code of 1986,  1 as amended; and “unincorporated association” has the meaning set forth in Section 18035.