An election under subsection (a) by a member of a controlled group shall apply to all qualifying vessel operators that are members of such group.
An election under subsection (a) shall be terminated whenever (at any time on or after the 1st day of the 1st taxable year for which the corporation is an electing corporation) such corporation ceases to be a qualifying vessel operator.
If a qualifying vessel operator has made an election under subsection (a) and if such election has been terminated under subsection (d), such operator (and any successor operator) shall not be eligible to make an election under subsection (a) for any taxable year before its 5th taxable year which begins after the 1st taxable year for which such termination is effective, unless the Secretary consents to such election.