Any member of the Fire Department who, when
joining, is within the ages of 18 years and 40 years, to complete
the time required by law to become exempt, shall serve seven years
as an active fire fighter under municipal control and will therefore
be entitled to apply for an exempt certificate, which certificate
of exemption shall be issued by the Borough Council upon certification
by the Secretary of the fire company of which the applicant is a member
and the Secretary of the Hopatcong Relief Association. Said member,
upon completing the term of service of seven years, or a member of
the Department incapacitated by illness and who can no longer serve
as an active fire fighter, may retire as an active member upon certification
by a practicing physician that said member is physically or mentally
unfit for further service as an active fire fighter.