(2) A variation includes the imposing of a
condition on a permit (whether or not any conditions have already been
imposed), the substitution of a condition, the omission of a condition or the
amendment of a condition.
(3) A permit may be varied only on the application
of the holder of the permit. However, the Secretary may vary a permit--
(a) to
correct a typographical error, or
(b) to resolve an inconsistency between
conditions to which the permit is subject.
(4) A permit may be varied at any
time during its currency, including (subject to section 90R) on its being
transferred to another person.
(5) A permit is varied by notice in writing
given to the holder of the permit.
