This is a copy of a response I received from Amtrak, concerning vaping:
Thank you for contacting us. Following is Amtrak's Policy on smoking Electronic Cigarettes on Amtrak trains:
Electronic Cigarettes
Electronic cigarettes or "e-cigarettes" are being marketed as a "safer" alternative to smoking tobacco products for individuals who are addicted to or want to use nicotine. Many of these electronic devices are designed to look like cigarettes, cigars and pipes. There have been some instances of passengers smoking "e-cigarettes" on Amtrak trains and in Amtrak stations. These electronic devices have not been approved by the FDA as being safe to use.
An "e-cigarette" is a nicotine dosing device consisting of a metal or plastic tube that contains a lithium battery pack, a heating element, electronic components, and, in those designed to look like cigarettes, a Light Emitting Diode at one end that mimics the glow of a lit cigarette when the user draws air through it. When a user draws air through the device, a heating element vaporizes a nicotine-containing propylene glycol solution, and the vapor is inhaled into the lungs. When they are puffed, the vapor is emitted into the atmosphere, which is visually similar to cigarette smoke. There is also the possibility that the exhaled aerosol from an "e-cigarette" could contain nicotine, propylene glycol or other volatile materials.
Amtrak does not allow the use of these electronic smoking devices in any area on trains, on Thruway services, in stations, or in any other area where smoking is prohibited.
We hope this information is helpful.
Sincerely,
Barbara R
Amtrak Customer Service