Except for wading pools and spray pads, each swimming pool where lifeguards are not provided shall have a designated emergency telephone or equivalent emergency communication system that can be operated without coins.  The communication system shall be available to users of swimming pools when the swimming pool is open.  When the telephone is not within the confines of the swimming pool enclosure, the location of the emergency telephone shall be posted in at least one conspicuous place within the swimming pool enclosure.  Instructions for emergency use of the telephone shall be posted near the telephone.

At each swimming pool where lifeguards are employed, a telephone shall be available to the swimming pool staff for emergency purposes. 

Kentucky

Section 14. Safety Equipment
 (10) All facilities shall have a non-pay telephone on the premises which is readily accessible and conspicuously located; for isolated facilities two (2) way radio communication systems to a manned telephone system may be substituted. The telephone number of a police, fire department, emergency medical service, or a hospital shall be posted in a conspicuous place near the telephone.

Louisiana

Title 51
PUBLIC HEALTHCSANITARY CODE
Part XXIV.
3. a telephone with posted names and phone numbers of nearest available police, fire, ambulance service and/or rescue unit, and/or 911, if available;

Maryland

The standards for an emergency telephone are amended to require the telephone to be
within the pool or spa enclosure. The phone must be posted with any numbers necessary to reach 911 emergency service.

Massachusetts

105 CMR:  Department of Public Health

435.25: First Aid Equipment and Emergency Communications
 (2) An emergency communication system which at a minimum would allow convenient, immediate and toll-free communication with emergency medical services, local police, state police and the local fire department, must be in working order and available at each pool. The telephone numbers of the emergency medical services, local police, state police and fire department, as well as any instructions necessary to operate the communication system shall be posted in a conspicuous place near the communication device or station. The location of the emergency communication device must be in an area that is unlocked and available to both the staff and the public at all times.

Michigan

 (7) A telephone or other suitable means of communication for emergencies shall be located in any of the following areas. 

Within the pool enclosure.
In a room adjacent to the pool enclosure which is kept open at all times that the pool is open for use.

In another located approved, in writing, by the department.

Minnesota

4717.1250 EMERGENCY TELEPHONE LOCATION.

A pool with a lifeguard present must have a telephone in or  immediately adjacent to the pool area.  When a telephone is  provided, the emergency number must be posted.  When a telephone  is not located in the pool enclosure, a sign placed in plain  view must indicate the location of the nearest telephone  available to a pool user and the emergency number.

Missouri

ST. LOUIS COUNTY

2.24.9 B. Emergency Telephone and Emergency Contact List. A telephone shall be accessible during all hours of operation in the vicinity of a public water recreation facility or within a 300 foot walking distance from an entrance to swimming facility enclosure. At a multi-level facility, the emergency telephone shall be located within three levels of the level on which the swimming facility is located. The telephone numbers of the local police, fire department, physician, ambulance service, and a hospital, or 911 where applicable, shall be posted in a conspicuous place near the telephone. The name, address and telephone number of the swimming pool facility shall be listed by the telephone. The location of the emergency telephone shall be posted in the swimming pool facility unless the telephone is located in the pool area.

Nebraska

011.04   All pools must have a really accessible telephone with emergency telephone numbers prominently posted. Drills in handling emergencies should be conducted at appropriate intervals.

Nevada

NAC 444.248  Required facilities (NRS 439.200, 444.070)

1.  Sanitary facilities must be provided in proportion to the anticipated bathing load. These must include:

Toilet and hand washing facilities and dressing rooms clearly marked for each sex; a safe and approved water supply; and drinking fountains, soap, and toilet tissue.

2. Conveniently located rubbish containers must be provided. These containers must be emptied whenever   necessary and be kept in a sanitary condition.  

3. Where night bathing is permitted, adequate lighting must be provided for the bathhouses and bathing area.

4. There must be telephone connections and transportation facilities available for emergency use.

[Bd. Of Health, Public Bathing Places Reg. Art. 46 §§ 46.4-46.6 & 46.11, eff. 5-21-74]

NAC 444.268  Posting information on artificial respiration and emergency services.

NRS 439.20044.070  Diagrammatic illustrations of artificial respiration procedures must be posted at all public bathing or swimming facilities where they are clearly visible from the nearby deck and protected from  the elements. Except as otherwise provided in this section, the location and telephone number of the nearest ambulance, hospital, fire or police rescue service, physician and facility operator must be kept similarly posted together with instructions that, in case of need, manual or mouth-to-mouth artificial respiration should be started immediately and continued until a physician arrives or mechanical resuscitators are applied. A telephone must be located in the vicinity of the pool enclosure, but outside of the enclosure. In lieu of the emergency telephone numbers described in this section, the number for the emergency 911 service may be posted if that emergency service is available in the geographical area of the public bathing or swimming facility.

[Bd. Of Health, Public Bathing Places Reg. Art. 38 §§ 38.8.6, eff. 5-21-74] – (NAC A 11-1-88; 1-16-96)

NAC 444.530   Notices which must be posted. (NRS 439.200, 444.070)

 1. Placards directing behavior of bathers must be prominently posted in locker rooms, offices, showers, toilets or elsewhere about the spa enclosure.

2.  A sign must be posted in the immediate vicinity of the spa, stating the location of the nearest telephone with the    information that emergency telephone numbers are posted on or near the telephone.

3.  Emergency telephone numbers must be posted on or near the telephone and must include:

The name and telephone number of the police , fire and rescue unit responsible for serving the spa.

The name and telephone number of the nearest available physician.

The name and telephone number of the nearest ambulance service.

The name and telephone number of the nearest available hospital.

In lieu of the telephone numbers listed in paragraphs (a) to (d), inclusive, the number for the emergency 911 service if that emergency service is available in the geographical area of the spa.

[Bd. of Health, Public Spa Reg. Art. 3 §§ 3.1.4 + Art. 28 §§ 28.5-28.5.4, eff. 11-27-79]-(NAC A 1-16-96)

New Hampshire