5(1)In paragraphs (k), (l), (m) and (p) of section 17(1) (which among other things provide for byelaws relating to pilotage certificates for masters and mates) before the words " mates " and " mate " wherever they occur there shall be inserted the word " first ".
(2)In section 17 (which authorises a pilotage authority to make byelaws for the purposes mentioned in subsection (1) of that section) after subsection (3) there shall be inserted the following subsection—
(4)A byelaw may make different provision for different circumstances.