- New June 23, 2026
Public Law 2025, Chapter 388, §§P-1 to P-4, which became effective September 24, 2025, includes new requirements specific to hospitals reporting 340B data to the MHDO.
To comply with and implement these changes, the MHDO held a public hearing 12/4/25 with a 10-day public comment deadline of 12/15/25 for the proposed changes to 90 590 Chapter 340, Uniform Reporting System for Reporting 340B Drug Program Data Sets. The MHDO board of directors met 2/5/26 to review the comments received and to act on staff’s recommendations. They adopted the revisions, and the rule was finally adopted and effective 3/8/2026.
FY25 Deadline Extended - MHDO has extended the deadline for FY25 reporting of 340B data to 10/31/2026.6/23/26 - Educational Webinar 8/20/26 at 1:00 pm
MHDO will be hosting an educational webinar on the new reporting requirements detailed in 90-590 Chapter 340, Uniform Reporting System for Reporting 340B Drug Program Data Sets on August 20, 2026, at 1:00 p.m.
Select this link to register in advance of this meeting. After registering, you will receive a confirmation email containing information about joining the meeting.
The MHDO data portal is expected to be available for the submission of FY25 data requirements September 1st with a deadline for submissions of October 31st.
Below is a revised timeline for your convenience. Please mark your calendars.
If you have any questions or concerns, please contact Debra Dodge at debra.j.dodge@maine.gov or the MHDO Help Desk at mhdohelp@hsri.org or (866)451-5876.
Note: Information regarding requirements for the first year (FY2024) of 340B data reporting can be found on the historical page.