PENNSYLVANIA
Pets are not permitted at the following sites:
ϑ at Smithfield Beach PA and Milford Beach PA, except in off season (See McDade Trail, below) When permitted, pets are permitted on paved areas only. Pets may not remain at or swim at these beaches.
ϑ Hialeah Picnic Area PA
ϑ Hidden Lake PA
ϑ the trails at Raymondskill Falls PA, Dingmans Falls PA
or Hackers Falls PA,
ϑ Childs Recreation Site PA (Childs Park)
ϑ McDade Trail  from a point 1/4 miles north of the boat launch at the north end of Smithfield Beach, to the first footbridge south of the canoe launch at the south end of Smithfield Beach, from June 1 to September 8 yearly. At other times of the year, pets may pass through Smithfield Beach.

NEW JERSEY
Pets are not permitted at the following sites:
ϑ Kittatinny Point (picnic areas and visitor center area)
ϑ Watergate Recreation Site.

Service Animals
Service animals for persons with disabilities, as defined in the Code of Federal Regulations 28CFR36.104 are not regulated as pets. National Park Service regulations exempt service animals such as guide dogs for the blind and signal dogs for the hearing-impaired from prohibitions on pets.

Hunting Dogs
Certain regulations apply to the training and use of hunting dogs. Please link to the park's bulletin at right. (pdf)