This standard describes requirements for the interchange of geographic data products that represent terrain, obstacles, and aerodrome mapping features. These requirements apply the concepts of the ISO 19100 series of standards to previously published requirements for data content and quality. Specifically, this standard represents an intermediate specification level between abstract conceptual requirements (EUROCAE/RTCA ED-99B/DO-272, EUROCAE/RTCA ED-98A/DO- 276A, and ISO 19115) and a compliant interchange implementation (Figure 1-3).

It is not the intent of this interchange standard to impose any physical interchange format on the user. This is solely to be agreed upon by the involved interchange parties.

Feature relationships, data capture rules, and structural constraints are not considered within the scope of the data interchange standard. It is assumed that they are applied in accordance with EUROCAE/RTCA ED-99B/DO-272B and EUROCAE/RTCA ED-98A/DO-276A during the data production process. It is the responsibility of a given data interchange implementation to ensure that structural requirements are met.