Notice of clarification (NOC)
Document providing further guidance and explanation on the requirements and procedures of the Election Assistance Commission's (EAC’s) Voting System Certification or Voting System Testing Lab (VSTL) programs. Notice of cancellations (NOCs) may be issued in response to a clarification request from a Voting System Test Lab or an EAC registered manufacturer. EAC may also issue NOCs when it determines general clarifications are necessary.
Source: Election Terminology Glossary - Draft, National Institute of Standards and Technology (NIST), https://pages.nist.gov/ElectionGlossary/