N.H. Code Admin. R. En 408.03
(a) ELECs shall submit all reports and forms to the department by the following methods:
(1) Mail or other delivery to:
New Hampshire Department of Energy
21 South Fruit Street, Suite 10
Concord, NH 03301-2429; or
Source. #14015, eff 7-1-24 (see Revision Note at chapter heading for En 400)