Yes Pup is absolutely right.
BTW--Encenada is moot. Doesn't have any effect at all. As you say it's the overall cruise not the port of Encenada itself. It's still a violation because of the Honolulu to Seattle.
I will have a new congressman in November so I'll have to let him know my feelings on establishing a cruise ship exemption. The last guy didn't do anything. The only way it will change if enough of us contact our reps.