Yes most full oil paints were banned.   You can still get some alkyd based paints such Tremclad, Rustoleum, zinsser's cover stain, and if you have a commercial license Industrial Plastics and Paints sell some heavy duty oil coatings as well.
 
I just refinished a bunch of cedar woodwork around my house with an awesome water based oil stain from Broda 
 Stains, Finishes, Paints + More | CBR Products 
Pricey at about $80 a gallon, but awesome stuff.  And manufactured in Vancouver 
Those latex deck coatings/stains are garbage, when I first bought my house I applied the BEHR shit to my deck (2 coats) and it was peeling within 2 years.  Garbage.