(a) Shareholding test.--A foreign corporation shall become a foreign domiciliary corporation under section 4102(a) (relating to foreign domiciliary corporations) on the first day of the sixth month following the month in which the corporation first has knowledge that the test has been met.
(b) Newly incorporated corporations.--Where the test under section 4102(a) is met at the time of initial issuance of shares of the corporation and continuously thereafter, foreign domiciliary corporation status when established shall be retroactive to the incorporation of the corporation.
(c) Foreign corporations with registered securities.--The exemption provided by section 4102(b)(1) shall terminate immediately upon the termination of the status of the corporation as a corporation described in that provision.
(d) Subsidiary corporations.--The exemption provided by section 4102(b)(2) shall terminate immediately upon the happening of any event whereby all of the shares of the corporation are no longer owned, directly or indirectly, by one or more registered corporations or corporations described in section 4102(b)(1).