The Principal Act is hereby amended by -
(a) the insertion after section 42 of the following section:
"42A. Condition for receipt (optional contributors).
(1) It shall be a condition for the receipt of unemployment benefit in respect of any day by a person engaged in share fishing that -
(a) it is not a day on which he is engaged in share fishing and it is a day in respect of which he makes reasonable efforts to obtain such work, and
(b) there was no work on, or in connection with, the fishing vessel of which he is a member of the crew available for him on that day for the reason that -
(i) as a consequence of weather conditions, the fishing vessel could not reasonably have put to sea for the purposes of fishing, or
(ii) the fishing vessel was undergoing repairs or maintenance, not being repairs or maintenance constituting work within the meaning of subsection (2).
(2) For the purposes of subsection (1), work includes any work done to the fishing vessel or its nets or gear by way