SPRINGFIELD – To increase transparency and provide additional data on opioid overdose in Illinois, State Senator Laura Fine passed a law to enhance reporting standards.

“Opioid overdoses impact the lives of thousands of Illinoisans every year,” said Fine (D-Glenview). “Additional data and transparency is critical to implement future life-saving measures.”

Expanding on existing requirements for overdose reporting, Fine’s law ensures all municipalities report overdoses using the Overdose Detection Mapping Application Program tool – a free web-based tool that works to provide the most up-to-date suspected overdose surveillance data to support public safety and health efforts. This law requires the Illinois Department of Public Health to work with stakeholders to utilize overdose data collected by EMTs to identify areas of need and bolster harm reduction efforts. It also strengthens patient protections to ensure ODMAP data is used to guide public health strategies, not for law enforcement purposes.

Previously, Illinois law only required Chicago EMS providers to report overdose information using the ODMAP tool.

“Using opioid overdose data to identify communities susceptible to opioid misuse and overdose will help state and community leaders implement essential public health interventions,” said Fine. “This law helps prevent future overdoses and restores a sense of security in our most vulnerable communities.”

House Bill 3645 was signed into law Friday and goes into effect Jan. 1, 2026.