603565e9_mework__Operational_Guidelines__extent_of_test_materials
[Level] 3. [testability of specification] In addition to regular specification reviews, a Working Group aims to have numerous normative use cases in the body of the Recommendation. [extent of test materials] 
In addition to the commitment of the previous level, a Working Group ensures that the test suite produced is reviewed by the Working Group or externally and the review process meets the criteria established in this document.
QA Framework: Operational Guidelines