This is why everyone is waiting to see what will happen.Shipping Restrictions | USPS
I don't see e-cigarettes fitting the definition of "cigarette" nor do I see "e-cigarette" or "tobacco products" in any of that. Until the PACT Act is amended to include them, I don't see how USPS can refuse to ship them.
I argued the point of the definition of a 'cigarette' initially when the deeming regs came out, but was told it was a dead horse. E-cigarettes do not fit the description as stated in US code 5 either, but that has not stopped them from other avenues as seen in the deeming regs.
Definitions of Cigarettes & Smokeless Tobacco Products
NOTE: If your cigarettes and smokeless tobacco shipment may be mailed, you must have your package approved by a Postal employee at a Post Office™.
Since when do postal employees have the authority to approve anything?