← Idaho knife laws›Local Knife-Law Preemption

Idaho Local Knife-Law Preemption (2026)

Permitted: Yes — Idaho Code 18-3327 (eff. July 1, 2024) bars cities, counties and political subdivisions from enacting any ordinance, rule or tax on knives; conflicting local laws are void.

PermittedVerified Jul 7, 2026

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Official source: legislature.idaho.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Local Knife-Law Preemption in states bordering Idaho

The same rule in each neighboring state LawLert has verified, from that state’s own official source.

MontanaPermitted
Montana preempts local knife regulation: local governments may not restrict any knife not specifically prohibited by state law, except on government property (MCA 45-8-352).
Verified Jul 7, 2026 · Source: mca.legmt.gov · Full Montana rule →
NevadaConditional
Nevada's weapons preemption (NRS 244.364 counties / 268.418 cities) covers only firearms, accessories and ammunition, so cities/counties (e.g., Clark County) may regulate knives.
Verified Jul 7, 2026 · Source: leg.state.nv.us · Full Nevada rule →
OregonConditional
Oregon's weapons preemption (ORS 166.170) covers only firearms, not knives, so cities like Portland may enact their own knife ordinances.
Verified Jul 7, 2026 · Source: oregonlegislature.gov · Full Oregon rule →
UtahPermitted
Utah reserves knife regulation to the state; 10-8-47.5 bars municipalities (and 17-60-502 counties) from enacting knife ordinances = statewide knife preemption.
Verified Jul 7, 2026 · Source: le.utah.gov · Full Utah rule →
WashingtonConditional
No knife preemption: RCW 9.41.290 occupies only the field of firearms regulation, so localities (e.g., Seattle's fixed-blade limit) may regulate knives.
Verified Jul 7, 2026 · Source: app.leg.wa.gov · Full Washington rule →
WyomingPermitted
WY preempts local regulation of 'firearms, weapons and ammunition,' reserving it to the state; the broad 'weapons' term covers knives — effectively statewide knife preemption (W.S. 6-8-401).
Verified Jul 7, 2026 · Source: wyoleg.gov · Full Wyoming rule →

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