(5) The
required period of notice of the discontinuation or reduction is required to
be given in accordance with this Subdivision whether or not the notice also
includes notice of a liability dispute.
(6) Subsection (1) does not apply to
a decision of an insurer to discontinue or reduce the amount of
weekly payments of compensation as a result only of the application of
different rates of compensation after the expiration of earlier periods of
incapacity for which higher rates were payable. However, notice of the
decision must be given before the expiration of the period of incapacity that
results in the discontinuation or reduction.