RSA 674:40 Improvements in Unapproved Streets.

I. A municipality which has established and recorded an official map, as provided in RSA 674:10, or has conferred upon a planning board platting jurisdiction in accordance with RSA 674:35 shall not thereafter accept, lay out, open, improve, grade, pave, or light any street or lay or authorize the laying of water mains, sewers, connections, or other facilities or utilities in any street, within any portion of the municipality unless such street:
(a) Has been accepted or opened as, or has otherwise received the legal status of, a public street prior to the conferring of platting jurisdiction upon the planning board; or
(b) Corresponds in its location and lines with a street shown on the official map, or with a street shown on a subdivision plat approved by the planning boa