The Secretary shall determine the user load, as defined in Regulation .05B(32) of this chapter, based on the following criteria: For a pool and its deck, one individual is allowed for: Every 12 square feet of water surface in shallow areas, Every 15 square feet of water surface in areas exceeding 5 feet of water depth, excluding a diving area, and The 300 square-foot diving area required for each diving board or diving platform; For a spa, one individual is allowed for every 9 square feet of water surface; and For a therapy pool, one individual is allowed for every: Therapy station, or 20 square feet of water surface, whichever is less. An owner shall ensure that the: Number of individuals in a pool or spa and on the required deck area does not exceed the user load as set forth in §A of this regulation; Number of individuals using an enclosed pool or spa area or a spectator area is in conformance with local fire code requirements; and User load of a pool or spa is posted in a conspicuous place at the pool or spa.