The earners of these badges have demonstrated that they have above average knowledge of chemistry & biochemistry concepts as measured by an American Chemical Society Diagnostic of Chemistry Knowledge Exam.

This exam is designed to be taken at or near the end of a four-year undergraduate curriculum and the score is compared to national norms. This exam series is widely used to test undergraduate students' comprehensive knowledge across multiple chemistry sub-disciplines and concepts. People looking to earn this badge should be aware that the exam may only be taken once.