N.Y. Comp. Codes R. & Regs. tit. 21, § 5300.9 – Restricted areas and activities.

(a) No person, except as specifically authorized by the authority, shall enter or attempt to enter into any area not open to the public, including but not limited to bus operator's seat location, closed-off areas, mechanical or equipment rooms, concession stands, storage areas, interior rooms, roadbeds, tunnels, plants, shops, barns, garages, depots or any area marked with a sign restricting access or indicating a dangerous environment.
(b) No vehicle, except as specifically authorized, may be parked on authority property.
(c) Photography, filming or video recording in any facility or conveyance is permitted except that ancillary equipment such as lights, reflectors or tripods may not be used. Members of the press holding valid identification issued by the local Police Department are hereby authorized to use necessary ancillary equipment. All photographic activity must be conducted in accordance with the provisions of this Part.
(d) No person shall extend his hand, arm, leg, head or other part of his or her person, or extend any item, article or other substance outside of the window or door of a bus or other conveyance operated by the authority.
(e) No person shall enter or leave a bus or other conveyance operated by the authority except through the entrances and exits provided for that purpose.
(f) No person may carry on or bring to any facility or conveyance any item that:
1. (1) is so long as to extend outside the window or door of a bus or other conveyance;
2. (2) constitutes a hazard to the operation of the authority, interferes with passenger traffic, or impedes service; and
3. (3) constitutes a danger or hazard to other persons.
  Nothing contained in this section shall apply to the use of wheelchairs, crutches, canes or other physical assistance devices.
  (g)
4. (1) No person may bring any animal on or into any conveyance or facility unless enclosed in a container and carried in a manner which would not annoy other passengers.
5. (2) Paragraph (1) of this subdivision does not apply to working dogs for law enforcement agencies, to service animals which have been trained or are being trained to aid or guide a person with a disability and are accompanying persons with disabilities, or to service animals which are being trained by a professional trainer. All service animals must be harnessed or leashed.
6. (3) Upon request by a law enforcement officer or other designated employee of the authority, a trainer must display proof of affiliation with a professional training school and that the animal is a licensed service animal or a service animal in training. Upon request of designated authority personnel, a passenger must display a service animal license issued by the Department of Health of the City of New York or by other governmental agencies in New York or elsewhere authorized to issue such licenses, or an identification from a professional training school that the animal is a trained service animal.
7. (4) Persons with disabilities who use service animals who do not have a service animal license or other proof that the animal is professionally trained as described in this subdivision may apply to the Capital District Transportation Authority on behalf of the authority for a service animal identification card.
8. (5) Designated authority personnel have the right to refuse admission to or eject any passenger accompanied by an animal which posed a direct threat to the safety of other passengers.