All states have there own laws about gas cans. I believe most of them have to do with when the gas can was manufactured rather than how it's used.
This site has a link where all the state laws listed...
http://www.pfcma.com/ ; Lots of legal stuff there but I think you should be fine.
Also, there is a couple of disposable, one-time use gas cans on the market. These are banned from sale in a handful of states due to safety concerns, so keep that in mind. They are prohibited because of concerns about disposal after they're used.