National Validation Checklist
A brief introduction to how BNG validation works, and how Mycelia makes it faster and easier to assess applications against the National Validation Checklist.
How national validation results work
After you upload a submission, Mycelia displays a National validation results box showing whether the case is valid or not. Underneath the overall result, you can expand detailed checks to see exactly what was assessed.
What Mycelia checksMetric version
Confirms the submission uses the correct statutory metric version. This protects against outdated or tampered metric files.
Metric content completeness
Checks that all required information is present in the metric, including:
- Baseline area data
- Author name
- Completion date
- Required photographs (for Small Sites Metrics)
Key values for cross-checking
Mycelia highlights important values - such as the on-site baseline area - so you can quickly cross-check them against other application documents.
Non-metric issues
Lists validation considerations that sit outside the metric itself. For example, whether there has been site degradation after January 2020.
Sharing results with applicants
The Copy national guidance button copies all validation notes into a format suitable for sending to applicants, so you can paste them straight into an email or letter.