As a condition to the issuance of a
permit as required by the
, all
engaged in hanging of
that involves, in whole or part, the erection,
, relocation, maintenance or other
work in, over or immediately
to a public
or public property so that a portion of the public
or public property is used or encroached upon by the
hanger in the said
work, shall agree to hold harmless and indemnify the , its officers, agents and employees from any and all claims of negligence resulting from said erection,
, relocation, maintenance or other
work.