Accreditation for Certification Bodies to Certify to the GSTC Criteria or to a GSTC Recognized Standard

GSTC Accredited means that a Certification Body (CB) awards certification according to proper certification processes that comply with international standards and good practices. Businesses certified by an Accredited CB can — if they choose — use the GSTC logo along with the CB’s mark, in accordance with GSTC licensing requirements.

GSTC Accredited status is the most reliable and cost-effective way to ensure confidence and credibility of sustainable tourism certification, and worldwide acceptance.

Benefits of Accreditation

  • International credibility that the certification is Accredited. The certification standard has been found to be in compliance with universal criteria for sustainable tourism and its procedures meet international principles for transparency, impartiality and competence.
  • Use the GSTC logo for the CB’s purposes, in accordance with a licensing agreement with the GSTC
  • Certified hotels, tour operators and destinations may use the GSTC logo, also in accordance with a licensing agreement with the GSTC, which can add further credibility to the CB’s logo and brand
  • CB featured on the web page of the Accreditation body that manages Accreditation for GSTC (Assurance Services International, or ASI)
  • Co-branding and -marketing opportunities with GSTC

Who can apply?

CBs may apply for accreditation under two options:

Option 1: Any CB that uses a GSTC-Recognized Standard; or

Option 2: Any CB that proposes to use the GSTC Industry Criteria and Indicators (for Hotels/Accommodations or for Tour Operators) or the GSTC Destination Criteria (for Destinations) as the standard for certification.

CBs should have rules and procedures for the application of the standard, transparent and impartial certification procedures, and auditors who are technically competent in sustainable tourism and conformity assessment.

Accreditation requirements

Accreditation requirements for Destination

GSTC Accreditation for Destination is managed directly by GSTC. GSTC is not receiving new applicants for accreditation for destinations at the moment due to the review of the Accreditation Manual v1.2 dated 2018. Should you have any further information, please do not hesitate to reach out to us to

Accreditation requirements for Industry

The GSTC Accreditation Manual for Certification of Hotel/Accommodation & Tour Operator version 3.0 provides detailed technical requirements for Certification of Hotel/Accommodation and Tour Operator. CBs are required to comply with ISO 17065 and GSTC specific requirements.

The GSTC Accreditation Manual approved on 12 July 2023 and will be effective on 13 October 2023. This effective date ensures a 3-months transition period.

Auditors Training and Qualifications

CBs will need to provide the auditors and the persons in the certification management positions that have specific knowledge of sustainable tourism and the GSTC Criteria.

To confirm auditors and the persons in the certification management positions have the needed specific knowledge, they are required to attend an auditor training approved by the GSTC and satisfactory pass of test(s). The completion of the auditor training with passing the test(s) is one of the requirements for the auditors and the other requirements will be evaluated and confirmed by the GSTC accredited certification body. See the required auditor qualification here.

GSTC Auditor Training Schedule

DatesCourse ID
Format/ Language
Nov 29- Dec 1, 2023AT2311Onsite/EnglishDr.Mihee KangUSD980-LEARN MORE

*Note: Those who have passed the STTP exam before 2019 are exempted from taking the Auditor Training tests. This exemption will only be applied to 2023 and will NOT be valid from 2024 onwards.

IMPORTANT: this refers to specialized GSTC auditor training and NOT the GSTC Sustainable Tourism Course or the GSTC Sustainable Hotel Course described elsewhere on this website for general tourism practitioners and stakeholders.

For auditor training, contact Jisun Kim, GSTC Training Program Manager, at

Accreditation procedure

Accreditation procedures for Destination

To apply for an accreditation for destination, please contact us to 

Accreditation procedures for Industry

To apply for an accreditation for industry, begin with reviewing the information on ASI website (Assurance Services International), GSTC’s partner in managing the accreditation process. You can access directly the ASI Price Sheet.

Download and review the GSTC Accreditation Manual for Certification Hotel/Accommodation & Tour Operators version 3.0.

We strongly recommend that prior to launching your application, you carefully review ISO17065 and work towards full compliance, because compliance to this standard is an important feature of the GSTC Accreditation Manual’s requirements.

Contact ASI at and complete the ASI application form, with any supporting information considered appropriate/requested.

Fees of Accreditation

ASI Fees are listed along with applications and instructions on ASI website. The ASI accreditation procedure can be found in the ASI document library.

Before the application review takes place, the CB signs an agreement with ASI and a GSTC licensing agreement with GSTC for use of the GSTC logo for certified businesses. Signature of all agreements is required before the Accreditation application proceeds.

Licensing agreements

CBs agree to a licensing arrangement directly with GSTC for use of the GSTC logo for certified businesses. The agreement specify the terms of use of the GSTC name and Seals as well as the licensing fees to be paid, and the conditions for use and withdrawal of the GSTC trademarks.

Dispute mechanism

To submit complaints/ appeals regarding the accreditation procedure and requirements, please review the Dispute Management Information on ASI Website.