N.H. Rev. Stat. § 15-B:5

An elected official, public official, public employee, or constitutional official may accept expense reimbursement for the reasonable expenses for attendance, registration, travel, meals, and lodging for a bona fide conference, meeting, seminar, or educational or informational program which the person attends and that is related to the office, position, or employment held with the state or county, provided that the person attaches to the disclosure report a copy of the agenda or an equivalent document which discloses the subjects addressed and the time schedule of all activities at the event. This provision shall not be construed to require reporting of an expense reimbursement made by an organization to which the state or county pays dues, when the prepayment, underwriting or reimbursement is provided because of the dues paid.