text: (4)The power under subsection (2)—(a)may be exercised more than once,(b)may not be exercised so as to fix a date for the poll at the election that is within the period mentioned in subsection (2) of section 37 of the 1973 Act, unless the holding of the election within that period is permitted under that subsection, and(c)may not be exercised so as to fix a date after 6 May 2021.