For that needs of this Endorsement suitable protection measures shall indicate that, constantly throughout the coverage time period, allowance is made for precipitation, flood and inundation approximately a return period of 20 years for the location insured on the basis of the studies well prepared with the meteorological `gencies. At http://contractors-all-risk-insu20639.ka-blogs.com/20474208/contractor-s-all-risk-insurance-an-overview