xmlns:atom="http://www.w3.org/2005/Atom"
For the purposes of any claim to repayment or set-off under subsection (3) of section thirty-eight of the principal Act (which provides for the repayment of excess profits duty paid and for a set-off against excess profits duty payable), any sum paid by the claimant by way of munitions exchequer payments shall be treated as though it were a sum paid by way of excess profits duty.