Pennsylvania's Uniform Construction Code requires four-foot barriers around residential pools statewide, following the International Swimming Pool and Spa Code.
The Pennsylvania UCC incorporates the International Swimming Pool and Spa Code (ISPSC) and IRC Appendix G barrier requirements. Pools deeper than 24 inches must be enclosed by a barrier at least 48 inches high with no openings allowing a 4-inch sphere to pass. Gates must be self-closing, self-latching, and open outward away from the pool. Above-ground pool walls may serve as the barrier when ladders are removable or lockable. Doors leading directly to pools require alarms or self-closing mechanisms.
Operating a pool without compliant barriers violates the UCC, with stop-work orders, fines up to $1,000 per day, and potential civil liability for injuries.
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