in 2010 paddlers will be required to have one for boats over 10 feet in length
one permit per paddler (not per boat)
at least one paddler I know bought two so he'd have one for visitors
permits are $5 plus $2 handling per permit
purchase wherever fishing and hunting licenses are sold
or buy online for another $2
For more information, see: http://www.boatoregon.com/
https://or.outdoorcentral.us/or/license
TO BUY: You'll need your social security card, driver's license and credit card
they ask for your hunter/angler ID#: if you don't have one, scroll down and select new customer to get one
(Dec 23 edit)
The new law can be found here:
http://www.leg.state.or.us/09reg/measpdf/hb2200.dir/hb2220.en.pdf
The regulations adopted by the Marine Board can be found here:
http://www.boatoregon.com/OSMB/BoatLaws/docs/250-010-0650Rule.pdf
I'm hearing some discussion among the LCCC paddlers that maybe a boater with a raft can buy enough permits to cover all on board and the name on the permit won't matter.