Credential Integrity
Every CAS certificate is serialised, QR-coded and verifiable online.
Delegates who complete a CAS programme receive a Professional Certificate of Completion. Each certificate carries a unique serial number and a QR code that resolves to the public verification record, so employers, clients and validation/verification bodies can confirm it in seconds.
Specimen
Sample certificate.
Carbon Advisory
Services
Carbon Advisory Services Ltd
London · Bradford · United Kingdom
Professional Certificate of Completion
This is to certify that
A. N. Specimen
Specimen Industries Plc
has successfully completed the assessed programme
GHG Accounting & the ISO 14064 Series
Professional Programme — Practitioner Track
ISO 14064-1ISO 14064-2ISO 14064-3ISO 14066GHG Protocol
35 contact hours · London · Mayfair (classroom) · Completed 19 June 2026
Programme Technical Director
CAS Training Programmes
Serial: CAS-2026-GHG-000142
Issued: 22 June 2026
Scan to verify
Integrity
How the credential holds up to scrutiny.
Unique serial
Every certificate is issued against a single non-reusable serial number recorded in the CAS register.
QR to source
The printed QR resolves to the CAS verification record — no third-party badge platform in between.
Employer-checkable
Anyone holding the serial can confirm the holder, programme, standards, hours and completion date.
This is a Professional Certificate of Completion issued by Carbon Advisory Services Ltd. It evidences attendance and successful assessment on the stated programme. It is not an accredited personnel certification scheme and does not confer accreditation status on the holder or their organisation.
Technical direction
Signed by the Programme Technical Director.
Programme Technical Director
CAS Training Programmes
- UNFCCC CDM Accreditation Team Leader (since 2007)
- Former Chair, ISO Committee on Developing Country Matters (ISO DEVCO)
- Former Director General, Sri Lanka Standards Institution
- 1,000+ training programmes delivered worldwide
- 500+ management system audits led
Areas of technical authority
- ISO 14064 series & GHG accounting
- Validation & verification (ISO 14065 / 14066 / 17029)
- Accreditation systems & conformity assessment
- National quality infrastructure