> It’s a federal crime to let your dog bark in a National Park but the park police don’t really care. The regulation (36 CFR § 2.15) says it is prohibited to t

> It’s a federal crime to let your dog bark in a National Park but the park police don’t really care. The regulation (36 CFR § 2.15) says it is prohibited to take pets to any “area closed to the possession of pets”, or to “[allow] a pet to make noise that is unreasonable considering location, time of day or night, impact on park users, and other relevant factors, or that frightens wildlife”. It is entirely reasonable to have this written down, so that it can be enforced if necessary. The presence of dogs has a significant impact on the behavior of wild animals, and park rangers absolutely do care if you bring your dog to areas of a National Park where it should not be, or if your dog is incessantly barking or howling in areas of the park where it is a nuisance. They will walk up to you and tell you to take your dog directly back to your car, or tell you to shut your dog up or leave. If you refuse to follow directions / give them a hard time about it, this regulation gives them authority to take further action, including charging a fine etc.