New Hampshire

Explore damage prevention information, local contacts and rules for safe digging in New Hampshire.

One Call Centers

811 or


11 Upton Dr.
Wilmington, NH 01887


M - F 0600 - 1700, Damage / Emergency 24 Hours

Advance Notice:

3 business days

Marks Valid:

30 days



Legislative Information

yes RSA 374, Section 47 thru 56
yes Mandatory Membership
yes Civil Penalties
yes Tolerance Zone 18"
yes Hand Dig Clause
yes Mandatory Premark
yes Emergency Clause
yes Positive Response
no Depth Exemption

Regional Partners

MUST (New England) Regional Common Ground Alliance

Geographic Location:

New England (Maine, New Hampshire, Vermont, Massachusetts, Rhode Island)


Lisa Powers
MUST (New England) Regional Common Ground Alliance

Partner Since:

September 2008


To promote underground facility safety through training efforts in cooperation with Dig Safe®, underground facility owners, private locating companies, municipalities, excavators and regulatory agencies, and to continually evaluate the New England one-call laws and underground safety best practices.