Ten days after receipt by the Commissioner, absent notice to the contrary, of a written verified statement which may be in letter form, containing satisfactory proof that a registrant is no longer a member of an insurance holding company system, such registrant's registration shall be deemed terminated and it shall no longer be subject to the obligations of registering and keeping current its registration hereunder, unless and until it again becomes subject to registration under said Act.
Cal. Code Regs. Tit. 10, § 2683.17