If any operation or maintenance charge is unpaid on the 1st day of the third calendar month after it became due a penalty of 1 per centum of the amount unpaid shall be added thereto, and thereafter an additional penalty of one-half of 1 per centum of the amount unpaid shall be added on the 1st day of each calendar month if such charge and penalties shall remain unpaid.
43 U.S. Code § 494 - Pecuniary penalty for nonpayment of operation charge
Section is comprised of part of first sentence of section 6 of act Aug. 13, 1914. Remainder of first sentence of such section 6 is classified to sections 479, 493 and 495 of this title; second and third sentences of such section 6 are classified to sections 496 and 497 of this title, respectively.
Act Dec. 5, 1924, reduced the additional penalty from 1 per centum to one-half of 1 per centum.