All participants are required to make an integrity declaration by including the above statement at the start of their written report. (Source)
From the assessment criteria for Open Data Institute Train the Trainer program (Link) and is attached to their submitted reflection.
It is more a statement in compliance language, rather than an assertion of values. Perhaps a value statement, crafted by the trainee, might be required not only as part of the review, but a public facing aspect of their certification?