(1) Chartering vessels;
(2) Guaranteeing to vessels, transportation lines, companies or persons, cargo and tonnage, and guaranteeing to vessels, transportation lines, companies or persons against loss on account of delay in the Columbia River or Willamette River or at the Columbia River bar;
(3) Absorption of charges for lightering, dredging, towage and pilotage of any vessels; or
(4) Fixing of pilotage and stevedoring charges, seamen’s wages, fuel costs, supplies and other charges and expenses incident to maritime commerce, at such a rate as may place a port on a competitive basis in such matter with other ports. [Amended by 1971 c.728 §97]