Possession of residue of a controlled substance unlawful; penalties exceptions.

Added extensive protections for industrial hemp growers and handlers, shielding them from prosecution for possession or growing of hemp and low-THC cannabis, including cases of inadvertent seed spread.

Introduced new involuntary manslaughter charges for knowingly distributing fentanyl-laced drugs that cause death, while simultaneously creating a specific exception for 'accommodation sales' between individuals not involving profit or addiction intent.

Added a new section defining 'residue' as a sample too small to weigh accurately, allowing prosecutors to reduce certain drug possession charges to a lesser misdemeanor.

Modified criminal liability rules for pharmaceutical and cannabis industry employees, preventing their prosecution for possessing marijuana or cannabis products when acting within their professional duties.

The document structure was altered to include page numbers, a 'House Substitute' header, and extra spacing, but the actual laws and policy provisions were not modified.