In general terms, conformity assessment is a demonstration of compliance with the essential requirements (ERs) and relevant implementing rules (IRs) for interoperability.
For each identified EATMN system or constituent there is a need to identify the applicable regulations (regulatory baseline) and relevant means of compliance (MoC baseline) thereby establishing the baseline for conformity assessment.
The manufacturer is responsible for verifying a constituent’s compliance with the established baseline for conformity assessment. This leads to the completion of an EC declaration of conformity (DoC) or an EC declaration of suitability for use (DSU) through self-assessment, a notified body or both.
The air navigation service provider is responsible for verifying compliance of each instance of a system being put into service with the established baseline for conformity assessment. This leads to the completion of a technical file (collating relevant technical information) and an EC declaration of verification (DoV) for inspection by the national supervisory authority (NSA).