Dog Park Rules (and Comments):

Every dog park has a set of rules. However, there are no "Dog Park Police" to enforce the rules, and the rules are enforced by the users of the park. The rules at our local park are:

No Glass Bottles or Alcohol: A common sense rule that needs no explanation.
Dog Park Users and Dog Owners Assume All Risk: Remember that every dog park involves risk, both to the dogs, the owners, and others in the park.
Dogs must be on leash until they enter the off leash area: This rule is frequently violated, but incidents do occur in the parking lot. Dogs can be protective of the area around their vehicles. Dogs can also dash in front of moving vehicles. Be smart and keep your dog on the leash outside of the off leash area.
Handlers must remain with their dogs in the off leash area: You are responsible for your dogs behavior. You must pay attention to your dog. Even if your dog is well behaved, another dog may not be under their owners control. This is not a time to make phone calls or send text messages.
Dogs must remain in view at all times and be in range of handler's voice control: You must be able to control your dog at all times.
Maximum three dogs per handler: This rule clearly makes sense. It is difficult for anyone to control more than one dog at a time, unless the dogs are very well trained. It takes a special relationship for a handler to have all of their dogs under control. Three dogs may be pushing the limit. I've witnessed handlers bringing as many as five dogs to the park, spending the majority of their time at the park yelling for a dog or dogs, while ignoring the ones in their care.
Dogs showing aggression towards people or other animals must be removed immediately. Animals that are known to have a history of aggressive behavior will not be permitted: Clearly a common sense rule. This rule is frequently policed by the others at the park. When a dog is aggressive, other people at the park will generally ask the owner or handler to leave.
Dogs in heat or under 6 months old are not permitted: Generally people have enough sense to keep dogs in heat out of the park. (Of course, un-neutered males are allowed in the park at any age. Who would have thought that sexual discrimination would apply to dogs? It's always the bitches fault?) However, many people bring small puppies to the park, without realizing the risk to their pups. Pups should not be exposed to other dogs until after they have all of their immunizations. It also makes sense to have some basic obedience skills first, particularly knowing to come to you when called. See Dog Park Dangers.
All dogs in park must be properly licensed, inoculated and healthy: Many people do not bring their dog's collars with the licensed attached to the park, out of fear that they will be lost while playing. It is a good idea to at least keep the collar with the license attached in your vehicle in case of a license check. Obviously, if you bring a dog that is not up to date on it's shots to the park, you are placing your dog, as well as other dogs, at risk. No one should take an unhealthy dog to the park.
Owners must clean up after their dogs immediately: Another common sense rule. Unfortunately, some people do not pay attention to their dogs, and fail to see the poop. If you don't find the poop, someone else will, and they will not be happy about finding it. See Dog Park Dangers.
All children under 16 must be under adult supervision in off-the-leash dog area: Not every dog loves children. Very small children are particularly at risk of accidental injury. See Dog Park Dangers.
Park is for general use, no classes or events are permitted without permission of Caln Township: This rule is probably universal at all dog parks.
Caln Township reserves the right to close the park at anytime for maintenance or special events.: This rule is self explanatory.
Violators will be subject to removal from the park: Another good rule, but in reality, the users are self-policing. If there is a problem, a person will leave voluntarily or other users will usually ask a person to leave.