Base Map Units
Where specific boundaries or locations for data are not known the data or the data concerns input to the
coastal zone from inland (e.g. Sediment loads of rivers) the data should be referenced to the smallest coastal
administrative unit (e.g. district, county, province).
The preferred "Map Reporting Unit" or MRU is for the district level. However, recognizing the practicality of
scale and the logistical implications to establish a uniform level of data for reporting, it is recommended that
the initial mapping system focus at the provincial level.