New Hampshire

For New Hampshire, chart as of is January 2024; ibc edition in force (from the state's own regulation) is 2024; irc edition in force (from the state's own regulation) is 2024; adopting regulation is N.H. Rev. Stat. Ann. § 155-A:1, IV; ibc edition is 18, recorded from its source on 2026-09-30; source re-checked 2026-10-10.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

New Hampshire 18 18 18 18 X 18 18 X 18 18

— iccsafe.org, retrieved 2026-09-30

Where each value comes from

The values above are stated away from the sentence quoted with the answer, so the passage that states them is shown here too.

— all from gencourt.state.nh.us, retrieved 2026-09-30

Sources

• iccsafe.orghttps://www.iccsafe.org/wp-content/uploads/Master-I-Code-Adoption-Chart-1.pdf
• gencourt.state.nh.ushttps://www.gencourt.state.nh.us/rsa/html/XII/155-A/155-A-1.htm

Last verified against source: 2026-10-10. Due for re-check by 2027-04-08. This page as Markdown · OKF bundle · full dataset as JSON.