5 rules for unincorporated Chester County, Pennsylvania.
Verified from official government sources
A backyard pool at a single-family home needs only a municipal building permit under the PA Uniform Construction Code. A public or semi-public pool (HOA, club, apartment, motel) additionally needs a state Public Bathing Place Permit and a Certificate of Registration from the Chester County Health Department.
Chester County Health Dept. Rules & Regs. §602.2.3
A person may not operate a public bathing place without a Certificate of Registration issued by the Department. The Certificate of Registration covers all pools, including wading, diving, racing, water slides, hot tubs, etc. that are operated at a particular site.
Every residential pool, spa, or hot tub in Chester County must be enclosed by a barrier at least 48 inches high, with self-closing, self-latching gates that open outward. This comes from the International Swimming Pool and Spa Code adopted statewide in the PA Uniform Construction Code and is enforced by
PA UCC / ISPSC 2018 §§305.2.1, 305.3
The top of the barrier shall be not less than 48 inches (1219 mm) above grade where measured on the side of the barrier that faces away from the pool or spa. Pedestrian access gates shall open outward away from the pool or spa, shall be self-closing and shall have a self-latching device.
Public pools in Chester County must follow county Health Department safety rules: certified lifeguards at recreational swimming establishments (one per 4,000 sq ft of water), plus lifesaving equipment. A pool without a lifeguard must post 'WARNING - NO LIFEGUARD ON DUTY' signs. Home pools follow the barrier rule only.
Chester County Health Dept. Rules & Regs. §602.5.2.2.1.1
At least one certified lifeguard for every 4,000 square feet of water surface area, plus one certified lifeguard for any fraction thereof, equal to or greater than 1,000 square feet...
An above-ground pool in Chester County that can hold 24 inches or more of water needs a municipal building permit and the same 48-inch barrier as an in-ground pool. Where the pool wall itself serves as the barrier, any ladder or steps must be removable, lockable, or secured against child
A spa or hot tub is defined by Chester County as a structure up to 48 inches deep with recirculation or air injection that is not emptied after each use. Backyard spas normally need only a municipal permit; a spa with a lockable safety cover meeting ASTM F1346 is exempt
Chester County Health Dept. Rules & Regs. §602.1.2.11
"Hot Tub or Spa": A structure, designed to contain water, having a maximum depth of 48 inches used in conjunction with water recirculation systems or air injection, and utilizing hot, cold, or ambient temperature water which is not emptied after each individual use.
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