The Board of Supervisors shall require that a two-year guarantee,
in the form of a bond, be provided from the date of acceptance of
all public improvements to be dedicated to the Township. The bond
shall be furnished under such conditions and form with surety as shall
be approved by the Board to guarantee the maintenance of all public
improvements against failure due to improper workmanship or materials
for two years and shall be in an amount equal to 25% of the costs
of such improvements.