Evidence

Travellers see High, Moderate, Emerging, or Unverified. Experts can inspect the underlying ladder. DEMO specialist feeds are labelled and cannot count as E4.

• E0 Unverified

  Self-declared only.

• E1 Documented

  Supporting documents supplied.

• E2 Measured

  Quantitative evidence available.

• E3 Independently verified

  Reviewed by an approved assessor or third party.

• E4 Continuous

  Live or recurring verified telemetry.