Question: The context in which we use word "deficiency" is inspection. Let's say, I look at your gas furnace and file a deficiency report describing some component or part.

What would the opposite of "deficiency" in this context? What would I call the "report" that certifies that your gas furnace is working well?

Thanks!

Answer: 
A Deficiency Report.

A Notice of Compliance ?
After a thorough examination, your gas furnace was found to be...

* **"in compliance with** current regulations".
* **"free of defects"**.
* "**in accordance with** current legislation."

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>  compliance (noun) the act or process of doing what you have been asked or ordered to do : the act or process of complying.
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