In the context of the CRF, transparency and completeness are primarily measured by whether a Party submitted CRF tables for all years that includes complete data for all source and sink categories and gases.

In other words, every cell in the CRF tables should be completed with information, although some of that information may be in the form of notation keys (e.g., NO for “not occurring”). Parties should use notation keys only where appropriate, however.
Overuse of notation keys such as IE (included elsewhere), NO (not occurring), or NE (not estimated) may indicate problems with a Party’s inventory submission.

There are also Documentation Boxes on most sheets of the CRF in which a Party can provide additional explanatory information to ensure that its CRF data are interpreted correctly.