Controlled substances.

Added several new controlled substances including various fentanyl analogs (such as 3-methylfentanyl, 3-methylthiofentanyl, and multiple nitazene derivatives) to the Schedule I list

Changed document formatting from enrolled act style to standard house bill format, including updated header information and page numbering

Established July 1, 2025 as the effective date for the controlled substance amendments

Added 2-Methyl AP-237 to the list of Schedule I controlled substances, making it illegal to possess, distribute, or manufacture this synthetic drug in Indiana.

The bill changed from an introduced version to an enrolled version, indicating it has passed both legislative chambers and is ready for the governor's signature. The effective date of July 1, 2025 remains unchanged.

Minor formatting and layout changes occurred during the legislative process, including reorganization of the document header and printing code sections, but no substantive legal changes were made to the controlled substance list beyond the addition of 2-Methyl AP-237.