21 USC 841(b)(1)(B) ordinarily sets a federal drug-trafficking prison range of five to forty years for specified substances and quantities. The applicable range can increase sharply when death or serious bodily injury results or a qualifying prior conviction applies. This statutory range is different from the advisory sentencing-guideline calculation. [1]
Match the substance and quantity to the correct tier
Examples of the subsection’s thresholds include 100 grams of a heroin mixture, 500 grams of a cocaine mixture, 28 grams of cocaine base, and either 5 grams of actual methamphetamine or 50 grams of a methamphetamine mixture. The distinction between actual drug weight and mixture weight matters. Higher quantities can trigger subsection (A), while other cases may fall under a different provision. [1]
Do not infer the penalty solely from a charge labeled possession with intent to distribute. Examine the charged provision, substance, quantity findings, and any resulting-injury allegation. The laboratory report and the legally attributable quantity can become central sentencing issues.
Enhancements and consequences beyond prison
When death or serious bodily injury results from use of the substance, the subsection ordinarily provides twenty years to life. A final qualifying serious drug felony or serious violent felony can raise the ordinary range to ten years to life; the statute provides life imprisonment when the specified prior and resulting death or serious bodily injury conditions apply. Not every prior conviction satisfies these defined categories. [1]
The subsection also provides substantial fines and supervised release: ordinarily at least four years, or at least eight years when the qualifying prior-conviction provision applies. The court cannot simply substitute probation for an otherwise applicable mandatory prison term. [1]
The safety valve requires its own analysis
18 USC 3553(f) permits qualifying defendants to be sentenced without the statutory minimum. Its requirements address criminal history, violence or weapons, death or serious bodily injury, leadership, and truthful disclosure to the government by sentencing. Meeting only one or two conditions is insufficient. [2]
The criminal-history clause has specific categories and controlling interpretation; it is not adequately summarized as “first offenders only.” Likewise, a guilty plea alone does not establish the required truthful disclosure. Counsel should identify each requirement and the evidence supporting it.
For the underlying offense, see the elements and penalty structure of Section 841(a). Disputed sentencing facts may require the procedures discussed in a federal sentencing fact hearing.
Primary sources
Sources checked: October 31, 2026.