The Public Health Act defines:
Public swimming pool or spa pool means a swimming pool or spa pool to which the public is admitted, whether free of charge, on payment of a fee or otherwise, including—
(a) a pool to which the public is admitted as an entitlement of membership of a club, or
(b) a pool provided at a workplace for the use of employees, or
(c) a pool provided at a hotel, motel or guest house or at holiday units, or similar facility, for the use of guests, or
(d) a pool provided at a school or hospital, or
(e) a pool situated at private residential premises, but only if that pool is used for commercial purposes, or
(f) any other pool or spa pool declared by the regulations to be a public swimming pool or spa pool,
but not including any pool or spa pool declared by the regulations not to be a public swimming pool or spa pool.
Spa pool includes any structure (other than a swimming pool) that—
(a) holds more than 680 litres of water, and
(b) is used or intended to be used for human bathing, and
(c) has facilities for injecting jets of water or air into the water.
Swimming pool includes any structure that is used or intended to be used for human bathing, swimming or diving, and includes a water slide, water play park or other recreational aquatic structure (including any interactive water feature or fountain that is intended to be bathed in for recreational purposes).
Notification of public swimming pools does not apply to a natural swimming pool.