External verification

External verifiers (EV) undertake a similar role to an internal verifier but at a national level and report directly to the Chartered Trading Standards Institute (CTSI).

CTSI splits the country in line with government office regions. Each region has its own regional EV who supports the region on queries about the portfolio, and interpretation of criteria.


  • ┬áregional meetings annually for assessors and verifiers to help with standardisation and update training.
  • verifying the quality of the verification decisions made by the verifier
  • reviewing a sample of each assessor and verifiers work to ensure they are using performance standards appropriately and consistently
  • facilitating standardisation processes to ensure candidates, assessors and verifiers are working, assessing and verifying to consistent standards.