ผมเข้าใจว่า เจตนารมณ์ของการกำหนดเช่นนี้ ก็คือต้องการให้สัตว์เลี้ยงอยู่ในลักษณะที่ไม่อาจไปสร้างความเดือดร้อนรำคาญให้กับบุคคลอื่นครับ แต่ถ้อยคำอาจจะไม่สื่อ จึงลองไปค้นดูข้อความในข้อกำหนดมาดู ก็พบว่า
The New York City Transit Rules of Conduct can be found at 21 NYCRR, Chapter XXI, Part 1050......
Section 1050.9 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
......
(h)Except as otherwise provided in paragraph (2) of this subdivision, 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. Paragraph (1) of this subdivision does not apply to working dogs for law enforcement agencies, to service animals, or to animals which are being trained as service animals and are accompanying persons with disabilities, or to animals which are being trained as service animals by a professional trainer. All service animals and animals being trained as service animals must be harnessed or leashed.
ที่มา :
http://web.mta.info/nyct/rules/rules.htm#disorderly