Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 44, § 18

Notes issued under section four, five, five A, five B, six, six A or seventeen may be sold at such discount as the treasurer or other officer authorized to sell the same may, with the approval of the officer or officers whose counter-signature is required on said notes, deem proper, the discount to be treated as interest paid in advance.