US SB3430

Eliminates the purity testing requirement for methamphetamine prosecutions under the Controlled Substances Act, allowing mandatory minimum sentences to be triggered based on total weight of any mixture containing detectable methamphetamine rather than requiring proof of "pure" methamphetamine

Removes the statutory distinction between pure methamphetamine (previously 5g/50g thresholds) and methamphetamine mixtures (50g/500g thresholds), effectively applying the lower weight thresholds to all methamphetamine offenses

Directs the U.S. Sentencing Commission to review and strengthen sentencing guidelines for methamphetamine offenses, with potential enhancements for cases involving large numbers of victims, pattern violations, dangerous weapons, or death/bodily injury

Responds to shift in methamphetamine supply from domestic labs (23,703 seizures in 2004 down to 34 in 2024) to Mexican cartel production using Chinese precursor chemicals, which now produces methamphetamine averaging 95.1% purity

Aims to reduce burden on federal and state crime laboratories by eliminating purity testing requirements deemed unnecessary given that virtually all seized methamphetamine now tests above 80% pure