VERIFY CERTIFICATE

Public · Verifiable · Trusted

Enter a case number or Green Designer credential to instantly verify GGCb certification.

Precise Certificate Lookup

Public verification prevents unauthorized or counterfeit certificates.

How to Verify?

Three input formats — all lead to our official records

Case No. (New Format)

Used since 2018, includes year, month, sequence and level.

GTW2506001C

Case No. (Legacy)

Legacy format from early certifications, still queryable.

G-2018-01-002

Designer Credential

Enter a green designer credential to check validity, the validity period and certified cases.

GDTW1801041