Through amendment 715, the Commission modified the Drug Equivalency Tables in Application Note 10(E) of §2D1.1, to provide that 1 gram of cocaine base equals 20 kilograms of marijuana. It also amended Application Note 10(D) to provide for a two level reduction to the combined offense level for a case involving crack and one or more other drugs, subject to some exclusions. A corresponding amendment to §1B1.10 renders the change to §2D1.1 retroactive. Attorneys who are challenging §2D1.1 on its face may wish to study the history of the prior mathematical problems with the equivalency table.
