There isn't one.
18
There it's no limit to age but any passenger under 18 is required to wear a helmet
3
There is no age limit in Ontario. Current Ontario law only requires that the passenger be able to reach both foot rests.
No, there is no limit in MS.
16 is the legal age
According to an email between myself and the Texas Department of Motorcycle Safety (dated October 2010): "A passenger on a motorcycle must be at least 5 years old. Texas Transportation code Sec. 545.416 (d)"
there is no age requirement inPA
There is no age minimum in TN
The limit differs from state to state. If you pass all of the written and driving tests, you can get a motorcycle endorsement at 18 in most states.
England does not impose an age limit for riding pillion on a motorcycle so long as the driver holds a full driving licence for two years.
There are no passenger age restrictions in Pennsylvania currently.
There is no minimum age for a passenger in California. However, foot pegs must be provided for the passenger and their feet should rest comfortably on them, with both feet touching. http://www.scribd.com/doc/280490/CA-DMV-Motorcycle-Handbook The California 2009 Motorcycle handbook states that only experienced Drivers should carry passengers or cargo. Shouldn't it be more like only driver's with a clean driving record????????????????