The Plan­ning Com­mis­sion shall review the pre­lim­i­nary plat with­in six­ty (60) days from the date of appli­ca­tion or the fil­ing of the last item of required sup­port­ing data, whichev­er is lat­er, and shall for­ward the plat to the Coun­ty Board with a rec­om­men­da­tion that the plat be approved, approved with mod­i­fi­ca­tions, or dis­ap­proved, and giv­ing the rea­sons for the rec­om­men­da­tions made.