Requires grading of offenses involving manufacturing, distributing, and dispensing heroin based on dosage units in addition to weight.

S 190 amends New Jersey's controlled substances laws to require sentencing for heroin offenses to consider both the weight and the number of "dosage units" (e.g., individual pills, packets, or typical single-use amounts) of heroin involved. This change directly affects individuals convicted of manufacturing, distributing, or dispensing heroin, as courts will now factor in how many discrete units were handled beyond just total weight. The bill adds a new definition of "dosage unit" to the statute, specifying it as either the smallest physical unit (like a pill) or the typical single-use amount consumed by a user. This adjustment aims to provide more precise sentencing criteria for heroin-related crimes under New Jersey law.