Adoption Notices

MAR Notice No. 2025-227.2 – HB 49 (2025) Implementation – Synthetic Cannabinoids

Comments were received; no changes made (excepting the correction of a typographic error in New Rule 1 (42.39.701(2))

Effective Date: March 21, 2026

MAR Notice No. 2025-372.2 – Revisions to Sampling-Test Batch Size

Comments were received; SOP-001 (v.4) adopted as proposed, except as noted.

Note: The department has not adopted the proposed increase in test batch size from 5.0 lbs to 15 lbs in Section 7 of SOP-001, as summarized in the Statement of Reasons section of the Notice.

Effective Date: March 21, 2026

Contact: Todd Olson | (406) 444-7905 | Todd.Olson@mt.gov