Swimming Pools & Spas in Montana (2026)
3 rules on the books across Montana, 1 city or county. Select a rule to read the full details.
Severity: Few Restrictions · Light Restrictions · Some Restrictions · Significant Restrictions · Heavy Restrictions
Pool Permits
Building and electrical permits required before installing a pool, including the depth and size thresholds that trigger them, and where above-ground and inflatable pools fall in or out of the rules.
Fencing & Safety Requirements
Mandatory barriers around pools, spas, and hot tubs, minimum heights, self-latching gate specs, and the alarm, cover, and anti-entrapment rules that ride along with them.
Montana: statewide
StatewideHeavy RestrictionsMontana regulates public swimming pools, spas, and bathing places under state health rules requiring licensing, water…
Read full rule →Billings
Some RestrictionsBillings requires a 4.5-foot self-latching fence around any pool or pond 18 inches deep or more, per City Code Sec…
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