The provisions of this section shall apply to any action, within the provisions of subsection (b), which is pending on
November 5, 1990, or commenced on or after such date. Notwithstanding
section 2401(b) of title 28, if a civil action or proceeding to which this section applies is pending on
November 5, 1990, and is dismissed because the plaintiff in such action or proceeding did not file an administrative claim as required by section 2672 of that title, the plaintiff in that action or proceeding shall have 30 days from the date of the dismissal or two years from the date upon which the claim accrued, whichever is later, to file an administrative claim, and any claim or subsequent civil action or proceeding shall thereafter be subject to the provisions of
section 2401(b) of title 28.