Oregon - Speed Limits
In Oregon, it is unlawful to operate any motorboat or personal watercraft at greater than "no wake" speed (Maximum 5mph) when within 200 feet or less of docks, marinas, piers, moorages, boathouses, boat ramps, or people in the water. The above rule does not apply to commercial vessels or river navigation because in such instances more speed is needed to ensure a safe passage.
Additionally, PWCs must come to "no wake" speed when within 100 feet or less of vessels other than personal watercraft.