Ontario hot tubs and spas require a building permit, electrical permit, bonding to Article 680, and either a locking safety cover meeting ASTM F1346 or full pool-barrier compliance under state law.
Hot tubs and portable spas installed at an Ontario home require a building permit and an electrical permit before the spa is energized. Spas must be bonded and served by a GFCI-protected circuit meeting California Electrical Code Article 680 for spas. For barrier compliance, California Health and Safety Code 115921 specifically allows a locking safety cover meeting ASTM F1346 to substitute for a fence on a spa, provided the cover is in place whenever the spa is not in active use. Otherwise, the spa must be enclosed by a 60-inch barrier with the same gate, gap, and under-barrier requirements as a swimming pool. Setbacks from property lines are set by zoning; most portable spas can be placed in a rear yard with a minimum clearance, but equipment pads should be level and accessible. Short-term rental hosts with spas must disclose and maintain the safety cover as part of their STR permit conditions. Plumbing drains into the sewer must follow Ontario sanitary sewer rules. Contact Ontario Building and Safety at (909) 395-2000.
Contact your local code enforcement office for specific penalty information.
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Side-by-side rule comparisons with other cities in San Bernardino County.
See how other cities in San Bernardino County handle hot tub rules.
See how Ontario's hot tub rules rules stack up against other locations.
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