Ben Weiss July 19, 2022 Compliance, Facility Operations, How to Guides, Legal Issues, Regulation, The Treatment Community How to Open an Addiction Treatment Center in New Hampshire Ben Weiss July 19, 2022 Compliance, Facility Operations, How to Guides, Legal Issues, Regulation, The Treatment Community While New Hampshire does have strict addiction treatment center regulations, it is not a CON state, meaning that you do not have to obtain a Certificate of Need proving that your particular treatment center is “needed” in the state.