What should be written in a block that is not used in a STARS report?

In the context of a STARS report, when a block is not used, marking it with "NA" (Not Applicable) is the appropriate approach. This designation clearly indicates to anyone reading the report that the specific block was considered but did not apply to the situation being reported. It also helps to maintain the integrity and clarity of the document, ensuring that it conveys accurate information without confusion over unfilled sections.

Leaving a block blank might lead to ambiguity, as it could be misinterpreted as oversight or a missed entry rather than an intentional omission. Writing "Unknown" does not accurately address the situation if the information genuinely does not apply. Similarly, using the full phrase "Not Applicable" is often unnecessary and can clutter reports. In reporting protocols, brevity and clarity are typically required, which is why "NA" is the most effective choice.