Nevada Administrative Code

NAC 444.399 “Slip resistant” defined. (NRS 439.200, 444.070) “Slip resistant” means a finish or textured surface designed to prevent or reduce slipping by bare skin in contact with it under wet conditions. (Added to NAC by Bd. of Health, eff. 11-2-88)

NAC 444.400 “Spa” defined. (NRS 439.200, 444.070) 1. “Spa” means a pool primarily designed for therapeutic use which is not drained, cleaned or refilled for each user. 2. The term includes units which employ hydrojet circulation, hot water, cold water, mineral water, air inductio…

NAC 444.403 “Spa enclosure” defined. (NRS 439.200, 444.070) “Spa enclosure” means an effective barrier for excluding unauthorized persons from the spa area and the area inside of the fence or barrier surrounding the spa. [Bd. of Health, Public Spa Reg. Art. 1 § 1.16, eff. 11-27-7…

NAC 444.405 “Stairs” defined. (NRS 439.200, 444.070) “Stairs” means a riser and tread or a series of risers and treads extending down from the deck into the spa. [Bd. of Health, Public Spa Reg. Art. 1 § 1.17.4, eff. 11-27-79]

NAC 444.407 “Steps” defined. (NRS 439.200, 444.070) “Steps” means stairs or ladders designed to permit entry and exit to and from the spa. [Bd. of Health, Public Spa Reg. Art. 1 § 1.17, eff. 11-27-79]

NAC 444.410 “Toxic” defined. (NRS 439.200, 444.070) “Toxic” means a quality which might produce an adverse physiological effect on a person. [Bd. of Health, Public Spa Reg. Art. 1 § 1.18, eff. 11-27-79]

NAC 444.415 “Waterline” defined. (NRS 439.200, 444.070) “Waterline” means: 1. Where a skimmer system is in use, the midpoint of the operating range of the skimmer. 2. Where an overflow system is in use, the height of the overflow rim. [Bd. of Health, Public Spa Reg. Art. 1 §§ 1.1…

NAC 444.416 “Wet deck area” defined. (NRS 439.200, 444.070) “Wet deck area” means the 4-foot-wide unobstructed area outside a spa’s or pool’s water perimeter, curb, diving boards, diving towers or pool sides. (Added to NAC by Bd. of Health, eff. 11-2-88)

NAC 444.417 Applicability. (NRS 439.200, 444.070) 1. The provisions of NAC 444.310 to 444.546, inclusive, referring to construction or modifications apply to all public spas constructed on or after November 27, 1979, and to any other public spa, where, in the opinion of the healt…

NAC 444.419 Severability. (NRS 439.200, 444.070) If any provision of NAC 444.310 to 444.546, inclusive, is declared unconstitutional or invalid for any reason, the remainder of the provisions of those sections are not intended to be affected thereby. [Bd. of Health, Public Spa Re…

NAC 444.420 Application; plans, specifications and descriptive material. (NRS 439.200, 444.070, 444.080) 1. Any person who desires to construct a public spa or modify or add to an existing public spa or alter its equipment must apply in writing to the health authority on forms fu…

NAC 444.422 Changes in plans; review of plans; structural adequacy. (NRS 439.200, 444.070, 444.080) 1. Public spa facilities must be built in accordance with the plans as approved, unless prior approval of any changes is obtained in writing from the health authority. 2. The revie…

NAC 444.424 Inspections. (NRS 439.200, 444.070, 444.090) 1. The owner, or his or her agent, shall notify the health authority at specific predetermined stages of construction and at the time of completion of the public spa to permit inspection of the public spa and related equipm…

NAC 444.428 Adoption of Standards by reference. (NRS 439.200, 444.070) The State Board of Health adopts by reference NSF International Standards 14, “Plastic Piping Components and Related Materials,” 50, “Circulation System Components for Swimming Pools, Spas/Hot Tubs” and 61, “D…

NAC 444.429 Use of equipment and materials not approved by NSF International. (NRS 439.200, 444.070) The health authority may permit the use of equipment and materials which are not designated by the NSF International as complying with the Standards adopted pursuant to NAC 444.42…

NAC 444.430 Shape. (NRS 439.200, 444.070) The shape of any public spa must be such that the circulation of the water will not be impaired. [Bd. of Health, Public Spa Reg. Art. 11 § 11.1, eff. 11-27-79]

NAC 444.432 Depth. (NRS 439.200, 444.070) 1. The maximum water depth for a public spa is 4 feet (1.22 m), measured from the waterline. Exceptions may be made by the health authority for spas designed for special purposes such as instruction, treatment and therapy. 2. The maximum …

NAC 444.434 Depth markings. (NRS 439.200, 444.070) Spas must have permanent depth markings plainly and conspicuously posted and located as follows: 1. The maximum water depth must be clearly marked. 2. Depth markings must be positioned within 18 inches (46 cm) of the water’s edge…

NAC 444.436 Slope. (NRS 439.200, 444.070) The slope of the spa floor must not exceed 1 foot (30.50 cm) of fall in 12 feet (3.66 m). [Bd. of Health, Public Spa Reg. Art. 11 § 11.5, eff. 11-27-79]

NAC 444.438 Materials. (NRS 439.200, 444.070) 1. Materials used in components and accessories used in and around public spas must not be hazardous to humans or to the environment in which the spa is installed. These materials must be capable of fulfilling the requirements of desi…

NAC 444.440 Structural design. (NRS 439.200, 444.070) 1. The structural design and materials used in constructing a public spa must meet generally accepted structural engineering practice and provide a sound, durable structure which will safely sustain all the dead loads, live lo…

NAC 444.442 Steps, ladders, treads and handrails required. (NRS 439.200, 444.070) 1. Spa steps, ladders or recessed treads must be provided when the spa is more than 2 feet (61 cm) deep. 2. A spa must be equipped with at least one handrail (or ladder equivalent) for each 50 feet …

NAC 444.444 Spa steps and recessed steps. (NRS 439.200, 444.070) Where required, spa steps and recessed steps must meet the following specifications: 1. Step treads must have a minimum unobstructed horizontal tread depth of 10 inches (25.40 cm) and a minimum width of 12 inches (3…

NAC 444.446 Recessed treads. (NRS 439.200, 444.070) Recessed treads, when provided, must meet the following specifications: 1. Stepholes must be: (a) Uniformly spaced, not more than 1 foot (30.48 cm) nor less than 7 inches (17.48 cm) apart at the centerline. (b) At least 5 inches…

NAC 444.448 Ladders. (NRS 439.200, 444.070) Where required, ladders must meet the following specifications: 1. Spa ladders must be made entirely of corrosion-resistant materials. 2. Ladder treads must have slip-resistant surfaces. 3. Ladder designs must provide two handholds or h…

NAC 444.450 Handholds. (NRS 439.200, 444.070) 1. A public spa must be provided with suitable handholds around the perimeter in areas where the spa is more than 3 feet 6 inches (1.07 m) deep, measured from the deepest point of the spa floor to the waterline. 2. Handholds must be s…

NAC 444.452 Miscellaneous requirements. (NRS 439.200, 444.070) 1. The surface finish of all public spas, including the bottom and sides, should be light-colored material and must present a smooth surface which can be easily cleaned and which has no cracks, openings, seams or expa…

NAC 444.454 Decks: Dimensional design. (NRS 439.200, 444.070) 1. A continuous unobstructed deck at least 4 feet (1.22 m) wide, including the coping, must be provided around at least half of the perimeter of the spa. Deck and wall junctures must be coved with a minimum of 4 inches…

NAC 444.456 Decks: Surfaces. (NRS 439.200, 444.070) 1. Decks, ramps and similar surfaces, including step treads, must be reserved for the use of bathers only, and be slip resistant. 2. Roughness or irregularity of slip-resistant surfaces must not cause injury or discomfort under …

NAC 444.458 Hose bibs. (NRS 439.200, 444.070) One or more hose bibs must be provided within 50 feet (15.24 m) of the facility for use in cleaning the deck area and above, and they must be located so that they do not constitute a safety hazard. [Bd. of Health, Public Spa Reg. Art.…

NAC 444.460 Drinking fountains. (NRS 439.200, 444.070) A drinking fountain must be provided within 100 feet (30.48 m) of the spa where it will be readily accessible from a spa pool. The drinking fountain may be inside or outside the spa pool enclosure. [Bd. of Health, Public Spa …

NAC 444.462 Roofs and canopies. (NRS 439.200, 444.070) Roofs and canopies over public spas must be constructed so that moisture or condensation from the roof or canopy does not drain into the spa. Roofs and canopies must be constructed so that they blend in with the surroundings …

NAC 444.463 Enclosures; exclusion of unauthorized persons. (NRS 439.200, 444.070) The holder of a permit to operate a public spa must: 1. Establish procedures to exclude unauthorized persons from the spa and spa area. 2. Construct a fence, wall, building, enclosure or any combina…

NAC 444.465 Gates and doors. (NRS 439.200, 444.070) Gates and doors which open into a spa or pool area must not be blocked open. The self-closing mechanisms or latches on the gates and doors may not be altered so that the gates and doors remain open. (Added to NAC by Bd. of Healt…

NAC 444.466 Electrical requirements. (NRS 439.200, 444.070) 1. Wiring and grounding of all electrical equipment associated with a spa and the bonding and grounding of all metal parts must meet the National Electric Code published by the National Fire Protection Association. 2. Ar…

NAC 444.468 When bathhouses required. (NRS 439.200, 444.070) 1. Dressing rooms, toilet facilities and shower rooms are required for all public spas other than those provided in connection with lodging facilities if the spa is reserved for tenants or guests who occupy the lodging …

NAC 444.470 Bathhouse facilities. (NRS 439.200, 444.070) 1. The entrance and exits of a bathhouse must be screened to break any line of sight from outside. 2. Each bathhouse must be provided with separate facilities for each sex with no interconnection between the provisions for …

NAC 444.472 Ventilation. (NRS 439.200, 444.070) 1. Indoor spas, shower rooms, dressing rooms and toilets of public spas must be properly ventilated. 2. Ventilation systems for indoor spas must be designed to prevent direct drafts on the bathers. 3. There must be at least five air…

NAC 444.474 Supply of water. (NRS 439.200, 444.070) 1. The water supply of the spa must be from an approved source and meet the requirements of the Division for potable water, except that the health authority may approve the use of natural hot or mineral waters. 2. A fillspout, i…

NAC 444.476 Quality of water. (NRS 439.200, 444.070) The spa equipment must provide water meeting the following standards: 1. The water must be continuously disinfected by a chemical which imparts an easily measured, freely available residual effect. Adequate disinfection may be …

NAC 444.477 Inlets. (NRS 439.200, 444.070) 1. Spa inlets must be: (a) Rounded. (b) Smooth. (c) Installed at least 18 inches (46 centimeters) below the normal operating water level. An exception to this requirement may be granted by the health authority if the shallow depth of the…

NAC 444.480 Drains. (NRS 439.200, 444.070) 1. Each spa must be provided with a drain at the deepest point to permit complete drainage. Outlets on the pump suction must be covered by suitable protective grates or antivortex covers which are securely fastened and cannot be removed …

NAC 444.482 Piping. (NRS 439.200, 444.070) 1. Piping must be made of nontoxic material, resistant to corrosion and able to withstand operating pressures. Pipes must be identified by color code, tags or labels. All plastic piping and fittings used in the recirculation system must …

NAC 444.484 Circulation and filtration. (NRS 439.200, 444.070) Public spas must be equipped with circulation and filtration equipment which meets the following criteria: 1. Circulation and filtration equipment must be of sufficient capacity to recirculate the entire spa water cap…

NAC 444.486 Pumps. (NRS 439.200, 444.070) 1. A pump and motor must be provided for circulation of the spa water. All pumps must provide the conditions of flow required for filtering and cleaning the filters against the total dynamic head developed by the complete system. 2. With …

NAC 444.488 Pump motors. (NRS 439.200, 444.070) 1. All motors must have as a minimum an open drip-proof enclosure, as defined by National Electrical Manufacturers’ Association standards, and be constructed electrically and mechanically so they will perform satisfactorily and safe…

NAC 444.490 Valves. (NRS 439.200, 444.070) 1. When a pump is installed below the overflow rim of the spa, valves must be installed on permanently connected suction and discharge lines and located in an accessible place outside the walls of the spa. 2. All valves must be located w…