RSA 374:51 Notification by Excavator.

I. No person shall perform an excavation within 100 feet of an underground facility, except in an emergency, without first giving notification as required by this section. In an emergency, notification shall be given at the earliest practicable moment.
II. At least 72 hours before a proposed excavation, but not including Saturdays, Sundays and legal holidays, each person required to give notice of an excavation shall notify the damage prevention system referred to in RSA 374:49. Such notice shall occur no more than 30 days before the proposed excavation is to be made.
III. Notice may be in writing, by telephone or by any other reasonable means.
IV. Prior to complying with the notification requirements of paragraph II, an excavator must premark the area as provided