California Code of Regulations (Cal. Code Regs.): Title 24 – California Building Standards Code > Cal. Code Reg. §3120B.7 Warning Sign for a Spa Pool
A warning sign for spa pools shall be posted stating “CAUTION” and shall include the following language in letters at least 1 inch (25 mm) high:
(1) Elderly persons, pregnant women, infants and those with health conditions requiring medical care should consult with a physician before entering the spa.
(2) Unsupervised use by children under the age of 14 is prohibited.
(3) Hot water immersion while under the influence of alcohol, narcotics, drugs or medicines may lead to serious consequences and is not recommended.
(4) Do not use alone.
(5) Long exposure may result in hyperthermia, nausea, dizziness or fainting.