Payment of premiums

The designated payor of each plan shall pay the premiums imposed by the corporation under this subchapter with respect to that plan when they are due. Premiums under this subchapter are payable at the time, and on an estimated, advance, or other basis, as determined by the corporation. Premiums imposed by this subchapter on September 2, 1974 (applicable to that portion of any plan year during which such date occurs) are due within 30 days after such date. Premiums imposed by this subchapter on the first plan year commencing after September 2, 1974, are due within 30 days after such plan year commences. Premiums shall continue to accrue until a plan’s assets are distributed pursuant to a termination procedure, or until a trustee is appointed pursuant to section 1342 of this title, whichever is earlier. The corporation may waive or reduce premiums for a multiemployer plan for any plan year during which such plan receives financial assistance from the corporation under section 1431 of this title, except that any amount so waived or reduced shall be treated as financial assistance under such section. If any designated payor fails to pay a premium when due, the corporation is authorized to bring a civil action in any district court of the United States within the jurisdiction of which the plan assets are located, the plan is administered, or in which a defendant resides or is found for the recovery of the amount of the premium penalty, and interest, and process may be served in any other district. The district courts of the United States shall have jurisdiction over actions brought under this subsection by the corporation without regard to the amount in controversy. The corporation shall not cease to guarantee basic benefits on account of the failure of a designated payor to pay any premium when due. For purposes of this section, the term “designated payor” means—