Chapter 31A — SYSTEMS FOR WINDOW CLEANING OR EXTERIOR BUILDING
Section 3120B — REQUIRED SIGNS
2025 California Building Code (Title 24, Part 2) · 2025 edition · ingested 2026-07-07 · California
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3120B.1 General. ¶
3120B.1 General. All signs shall have clearly legible letters or numbers not less than 4 inches (102 mm) high, unless otherwise required in this section, affixed to a wall, pole, gate or similar permanent structure in a location visible to all pool users.
3120B.2 Pool user capacity sign. ¶
3120B.2 Pool user capacity sign. A sign shall indicate the maximum number of pool users permitted for each pool. 3120B.2.1 Spa pool. The pool user capacity of a spa pool shall be based on one pool user for every 10 square feet (0.929 m [2] ) of pool water surface area. 3120B.2.2 Other pools. The pool user capacity for all other pools shall be based on one pool user for every 20 square feet (1.858 m [2] ) of pool water surface area. Exception: Pool user capacity requirements do not apply to wading pools or spray grounds.
3120B.3 No diving sign. ¶
3120B.3 No diving sign. Signs shall be posted in conspicuous places and shall state, “NO DIVING” at pools with a maximum water depth of 6 feet or less.
3120B.4 No lifeguard sign. ¶
3120B.4 No lifeguard sign. Where no lifeguard service is provided, a sign shall be posted stating, “NO LIFEGUARD ON DUTY.” The sign also shall state in letters at least 1 inch (25 mm) high, “Children should not use pool without adult supervision.” Exception: “No lifeguard sign” requirement does not apply to spray grounds that have no standing water.
3120B.5 Artificial respiration and cardiopulmonary resuscitation sign. ¶
3120B.5 Artificial respiration and cardiopulmonary resuscitation sign. An illustrated diagram with text at least [1] / 4 inch (6 mm) high of artificial respiration and cardiopulmonary resuscitation procedures shall be posted.
3120B.6 Emergency sign. ¶
3120B.6 Emergency sign. The emergency telephone number 911 with numbers not less than 4 inches (102 mm), the number of the near- est emergency services and the name and street address of the pool facility with numbers and text not less than 1 inch (25 mm) shall be posted. 31B-10 2025 CALIFORNIA BUILDING CODE on Jul 18, 2025 11:14 AM (CDT) THEREUNDER. PUBLIC POOLS
3120B.7 Warning sign for a spa pool. ¶
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 physi- cian before entering the spa. 2. Children should not use spa without adult supervision. 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…
3120B.8 Emergency shut off. ¶
3120B.8 Emergency shut off. In letters at least one inch (25 mm) high a sign shall be posted at the spa emergency shut off switch stat- ing, “EMERGENCY SHUT OFF SWITCH.”
3120B.9 No use after dark. ¶
3120B.9 No use after dark. Where pools were constructed for which lighting was not required, a sign shall be posted at each pool entrance on the outside of the gate(s) stating, “NO USE OF POOL ALLOWED AFTER DARK.”
3120B.10 Keep closed. ¶
3120B.10 Keep closed. A sign shall be posted on the exterior side of gates and doors leading into the pool enclosure area stating, “KEEP GATE CLOSED.” or “KEEP DOOR CLOSED.” [DSA-AC] Additional requirements may apply. Refer to Chapter 11B for accessibility provisions applicable to public accommodations, commercial buildings and public housing.
3120B.11 Diarrhea. ¶
3120B.11 Diarrhea. The pool operator shall post at the entrance area of a public pool a sign in letters at least 1 inch (25 mm) high that clearly states that persons with diarrhea and persons who have had diarrhea within the prior 14 days shall not enter the pool water.
3120B.12 Wave pools. ¶
3120B.12 Wave pools. A sign in letters at least 1 inch (25 mm) high shall be posted that describes the requirements for wave pools as described in Section 115952, Health and Safety Code.
3120B.13 Spray ground sign. ¶
3120B.13 Spray ground sign. A sign shall be posted at each spray ground and be visible from any part of the spray ground that states, “CAUTION: WATER IS RECIRCULATED. DO NOT DRINK.”
3120B.14 Exit. ¶
3120B.14 Exit. Where automatic gaseous chlorine chemical feeders are used, a sign shall be posted at the pool area entrance which shows in a diagrammatic form an emergency evacuation procedure. Designated emergency exits shall be marked “EXIT.”
3120B.15 Gaseous oxidizer. ¶
3120B.15 Gaseous oxidizer. Where automatic gaseous chlorine chemical feeders are used, a warning sign with the appropriate hazard identification symbol shall be posted on the exterior side of the door entering the chemical feeder room or area. The sign shall state, “DANGER: GASEOUS OXIDIZER - (specific chemical name)” or as otherwise required by the California Fire Code.
3120B.16 Turn on before entering. ¶
3120B.16 Turn on before entering. Where automatic gaseous chemical feeders are used, a sign shall be posted at the switch to the light and ventilation system for the gaseous chemical feeder room stating, “TURN ON BEFORE ENTERING,” or as otherwise required by the California Fire Code or the California Electrical Code.
3120B.17 Direction of flow. ¶
3120B.17 Direction of flow. 3120B.17.1. The direction of flow for the recirculation equipment shall be labeled clearly with directional symbols such as arrows on all piping in the equipment area. 3120B.17.2. Where the recirculation equipment for more than one pool is located on site, the equipment shall be marked as to which pool the system serves. 3120B.17.3. Valves and plumbing lines shall be labeled clearly with the source or destination descriptions.