In a federal drug prosecution, the sentence a person faces is set less by what they did than by how much of a controlled substance the government can attribute to them. Under 21 U.S.C. § 841, the type and weight of the drug fix a mandatory minimum before a judge weighs anything about the individual defendant.
That is the feature of federal drug law that surprises people most. Once a conviction for distribution or possession with intent to distribute is entered, the floor of the sentence comes from the drug-quantity tier in the statute, not from whether the person was a courier or an organizer. A mandatory minimum is a sentence floor set by statute that the court cannot go beneath except in narrow, defined circumstances. The Mayberry Law Firm defends federal possession with intent to distribute charges in the Middle District of Florida, including the Fort Myers Division, and the fight over quantity is often where the real sentence is decided.
How Drug Weight Sets the Mandatory Minimum
Section 841 sorts drug offenses into tiers by quantity, and each tier carries its own mandatory minimum:
- The highest quantities, under § 841(b)(1)(A), carry a mandatory minimum of 10 years and a maximum of life.
- The middle quantities, under § 841(b)(1)(B), carry a mandatory minimum of 5 years and a maximum of 40 years.
- Amounts below both, under § 841(b)(1)(C), carry no mandatory minimum and a ceiling of 20 years.
The exact weight that triggers each tier depends on the substance. It takes 5 kilograms of cocaine or 400 grams of fentanyl to reach the top tier, while 500 grams of cocaine or 40 grams of fentanyl reaches the middle one. Where death or serious bodily injury results from the drug, the 10-year and 5-year floors both rise to 20 years. Separately, the advisory sentencing guideline at USSG § 2D1.1 uses that same quantity to set the guideline range, so weight drives the case twice over.


