All steep slope work permits shall expire on completion of the
acts specified therein and, unless otherwise indicated, shall be valid
for a period of one year from the date of issue. Upon written request
by the original permit holder or his/her successor, the Planning Commission
may extend the time in which the acts specified in the permit must
be completed for additional periods of up to one year each if the
Planning Commission, in its discretion, finds that such extension
is warranted by the particular circumstances involved, provided that
in the case of a permit where no work on the steep slope(s) has been
accomplished, extensions shall not exceed two additional periods of
90 days each, in which case, should a permittee fail to complete the
acts specified in the permit prior to the expiration of the second
ninety-day extension, at the discretion of the Planning Commission,
the original permit may become null and void, and an application would
then need to be made for a new permit. The request for a new permit
shall follow the same form and procedure as the original application,
except that the Planning Commission shall have the option of not holding
a public hearing if the original intent of the permit is not altered
or extended in any significant way.