1. Licensing of retailers of binary explosives (a) Prohibited acts Section 842(a) of title 18, United States Code, is amended— (1) in paragraph (3)(B), by striking or ; (2) in paragraph (4)(B), by striking the period at the end and inserting a semicolon; and (3) by adding at the end the following: (5) to engage in the business of selling a binary explosive to an individual without a license issued under this chapter; (6) to knowingly sell a binary explosive to an individual without complying with subsection (q); or (7) to knowingly purchase a binary explosive in excess of the monthly amount described in subsection (q)(1). . (b) Treatment of binary explosives (1) Treatment with respect to licenses Section 843 of title 18, United States Code, is amended— (A) in subsection (a), by striking deal in explosive materials and inserting deal in explosive materials, or to sell a binary explosive to an individual, ; (B) in subsection (a), by striking to possess explosive materials and inserting to possess explosive materials or a binary explosive ; (C) in subsection (b)(4)(A), by striking storage for explosive materials and inserting storage for explosive materials or a binary explosive