Home›Standards›GSTC-H

H

GSTC Hotel Standard

v4.0 · 40 criteria · 205 performance indicators · Hotels and accommodations

Published 30 December 2025, when the former GSTC Industry Standard was split into separate Hotel and Tour Operator standards. GSTC organises it around four pillars — effective sustainability planning, maximizing social and economic benefits for the local community, enhancing cultural heritage, and reducing negative impacts on the environment — and describes its standards as “the minimum standards that any tourism business should strive to achieve”. Within it sit the baseline performance requirements our free Gap Analysis is built on.

Cluster 1

What is GSTC?

For hotel managers encountering GSTC for the first time

What does GSTC stand for, and what does it actually do?

GSTC stands for the Global Sustainable Tourism Council. It is a non-profit organisation that establishes global baseline standards for sustainable tourism and accredits independent third-party organisations — called Certification Bodies — to conduct audits against those standards. GSTC does not certify hotels directly. It sets the rules and authorises the auditors.

Source:GSTC Standards Overview·GSTC — Certification, Accreditation, Recognition

If GSTC doesn't certify my hotel, who does?

Your hotel is certified by a GSTC-Accredited Certification Body (CB) — an independent third-party organisation assessed and approved by GSTC to conduct hotel sustainability audits. The CB sends trained auditors to review your documentation and visit your property. If your hotel meets the standard's requirements, the CB issues certification. GSTC plays no role in individual hotel audits.

Source:GSTC — Certification, Accreditation, Recognition·GSTC-Accredited Certification Bodies

Is GSTC certification the same as a green star rating or eco-label?

No. GSTC certification is independently verified third-party certification — an external auditor confirms that your hotel meets specific documented requirements. A hotel either meets the standard or does not. There is no tier or star level within GSTC certification. It is not self-declared and it is not a label purchased from a membership body.

Source:GSTC — Certification, Accreditation, Recognition

Why would my hotel want GSTC certification?

Booking platforms and corporate travel programmes increasingly ask for verified credentials rather than self-declared ones, and for a hotel in a UNESCO site, a national park or an environmentally sensitive destination, certification is documented evidence of responsible operation for regulators and destination managers to look at.

On the EU rules, which are widely mis-summarised: from 27 September 2026 Directive (EU) 2024/825 prohibits displaying a sustainability label not founded on a certification scheme monitored by an independent third party, and prohibits generic environmental claims — ‘eco-friendly’, ‘environmentally friendly’ — unless recognised excellent environmental performance is demonstrated. It does not require every claim to carry third-party certification; a specific, substantiated claim can stand on its own evidence. GSTC publishes its own account of how its certification supports compliance, but that is GSTC’s position and not an EU designation — the EU keeps no list of approved pathways, and we are not in a position to tell you any certification discharges your obligations. That one is for your own legal advice.

Source:Directive (EU) 2024/825 (EUR-Lex)·GSTC — How GSTC Certification Supports EU EmpCo

How do I find a GSTC-Accredited Certification Body?

GSTC publishes the list of accredited CBs at gstc.org. CBs vary in regional coverage, sector specialisation, pricing, and timelines. Contact two or three for initial quotes and timelines before committing. The hotel may use any GSTC-Accredited CB — there is no requirement to use a local one.

Source:GSTC-Accredited Certification Bodies

Cluster 2

The GSTC Hotel Standard — structure and scope

What it covers and how it is organised

What is the GSTC Hotel Standard v4.0 and what does it contain?

Published 30 December 2025, it holds 40 criteria carrying 205 performance indicators across four sections — 74 in A, 44 in B, 12 in C and 75 in D. GSTC describes its standards as “the minimum standards that any tourism business should strive to achieve”, and says they indicate “what should be done, not how to do it”. For hotels the Accreditation Manual states that “all the indicators in the GSTC Standard are mandatory for compliance”, so there is no scoring and no section threshold — though a CB audits by sampling, using document review, interview and observation, rather than examining all 205 one by one.

Source:GSTC Hotel Standard·Accreditation Manual v5.0, Clauses 5.1.2.1 and 8.11.4

What are the four sections of GSTC-H?

→
Section A — Demonstrate effective sustainable management (A1–A14): The largest section by criteria count. The management system (A1), legal compliance (A2), guest and staff welfare (A3 — which the tour operator and attraction standards do not have), reporting (A4), accurate promotion (A5), information and guidance (A6), staff engagement (A7), guest experience (A8), collaboration with stakeholders (A9), land, water and property rights (A10), site selection and planning (A11), buildings and infrastructure (A12), procurement (A13) and food and beverages (A14). A13 alone carries 14 indicators and most of the baseline requirements.
→
Section B — Maximize social and economic benefits to the local community (B1–B9): Community support (B1), local employment (B2), local entrepreneur support (B3), community services and livelihoods (B4), access for all (B5), code of conduct (B6), exploitation, harassment and human trafficking (B7), employment inclusion and equality (B8) and decent work (B9). B9.4 carries the living-wage baseline requirement.
→
Section C — Maximize benefits to cultural heritage (C1–C4): The shortest section by some distance — four criteria and twelve indicators: cultural interactions (C1), protecting cultural heritage (C2), presenting culture and heritage (C3) and artifacts (C4).
→
Section D — Maximize environmental benefits (D1–D13): Energy (D1), water (D2), GHG emissions (D3), transportation (D4), wastewater (D5), solid waste (D6), harmful substances (D7), pollution (D8), biodiversity (D9), invasive species (D10), interactions with animals (D11), animal welfare (D12) and wildlife harvesting and trade (D13). Note the last three: a hotel with animals on site, or offering wildlife experiences, has criteria of its own here.

Source:GSTC Hotel Standard·GSTC Hotel Standard v4.0, Sections A–D

What is the difference between a criterion and a performance indicator?

A criterion is a top-level requirement — for example, "The hotel has an energy conservation programme." A performance indicator is the specific, auditable element beneath it — for example, "The hotel measures and records its total energy consumption by type on an annual basis." Certification is assessed at the performance indicator level. GSTC-H v4.0 contains 205 performance indicators. For hotels every indicator is mandatory, which is what makes the indicator the unit that matters here — note that GSTC-D works the other way round, binding its criteria and offering its indicators as a sample set.

Source:GSTC Hotel Standard·Accreditation Manual v5.0, Clause 5.1.2.1

Does GSTC-H apply to small independent hotels?

Yes, and the standard builds the difference in rather than leaving it to an auditor’s goodwill: A1 requires a management system that is proportionate to the hotel’s size, capacity and activities. Proportionate evidence is not the same as fewer requirements, though — there is no small-property tier, and the baseline requirements in particular are written as things that are either true of your property or not. Replacing single-use amenities with bulk dispensers does not scale down.

Source:GSTC Hotel Standard v4.0, Criterion A1, and baseline performance requirements

A

Effective sustainable management

  • · A1 Management system
  • · A2 Legal compliance
  • · A3 Guest and staff welfare
  • · A7 Staff engagement
  • · A13 Procurement (14 indicators)
  • · A14 Food and beverages
B

Social & economic benefits

  • · B2 Local employment
  • · B3 Local entrepreneurs
  • · B5 Access for all
  • · B6 Code of conduct
  • · B7 Exploitation & trafficking
  • · B9 Decent work
C

Benefits to cultural heritage

  • · C1 Cultural interactions
  • · C2 Protecting cultural heritage
  • · C3 Presenting culture
  • · C4 Artifacts
D

Environmental benefits

  • · D1–D2 Energy and water
  • · D3 GHG emissions
  • · D6 Solid waste
  • · D9 Biodiversity
  • · D11–D12 Animals and welfare
  • · D13 Wildlife harvesting

Cluster 3

How does certification work?

Process, roles, and timeline

What does the full certification process look like?

Five stages. The hotel self-assesses against the standard and prepares evidence. It then selects and engages a GSTC-Accredited CB. The CB conducts a Document Review remotely — assessing submitted evidence against the 205 performance indicators. The CB then conducts an Onsite Audit — visiting the hotel to verify that documented practice reflects actual operations. The CB issues a certification decision. If certification is issued, it is valid for three years, with annual surveillance audits during that period.

Source:Accreditation Manual v5.0, Clauses 8.10.3, 8.11.4, 8.14.3, 8.16.1·GSTC-Accredited Certification Bodies

How long does the process typically take?

GSTC publishes no timeline and we will not invent one. What the Manual fixes is the shape rather than the duration: each CB sets audit time from the certification scope and a risk assessment, initial and recertification audits are conducted on site, and the cycle runs three years from the certification decision. Your own preparation depends on how much already exists. The part that cannot be compressed is the baseline requirements that turn on accumulated figures — the share of fresh goods bought locally, wage records, LED coverage — because a percentage with a history behind it takes time to acquire, however much effort you apply.

GSTC publishes no answer to this. TavaSIS’s own reading, based onAccreditation Manual v5.0, Clauses 8.14.1, 8.14.3, 8.10.5·GSTC Hotel Standard v4.0, Baseline performance requirements

What happens during the Document Review?

The CB receives and reviews the hotel's documented evidence against the standard's requirements. Auditors assess whether documented policies, procedures, records, and evidence satisfy each performance indicator. The CB may issue requests for clarification or additional documentation. This part is normally done without a visit; the Manual requires the initial audit itself to be conducted on site.

Source:Accreditation Manual v5.0, Clauses 8.11.4 and 8.14.3

What happens during the Onsite Audit?

An auditor or audit team visits the hotel. They verify that what is documented reflects actual practice — by inspecting facilities, observing operations, reviewing physical records, and interviewing staff at multiple levels. A hotel that has strong documentation but inconsistent practice will be identified at this stage. How long it takes is not fixed by GSTC: audit time is set by the CB from the certification scope and a risk assessment.

Source:Accreditation Manual v5.0, Clauses 8.11.4 and 8.14.1

Is a GSTC consultant required?

No. A hotel can engage a CB directly without a consultant. Consultants are commonly used for gap assessment, documentation development, and audit preparation — particularly for hotels going through the process for the first time. Using a consultant does not influence the CB's certification decision.

Source:Accreditation Manual v5.0, Clause 8.5.1

Cluster 4

The Sustainability Management System

The most foundational concept in GSTC certification

What is a Sustainability Management System (SMS)?

A Sustainability Management System is the documented framework through which a hotel manages, monitors, and continuously improves its sustainability performance. Under Section A, the SMS must include at minimum: a written sustainability policy, documented sustainability targets linked to that policy, documented actions to implement the policy, and a regular review process (at least annual) to assess progress and update targets. It is not a single document — it is a system of interconnected documents, records, and processes.

Source:GSTC Hotel Standard v4.0, Criterion A1

What does GSTC-H specifically require in the SMS?

Section A requires the hotel to demonstrate that its SMS:

→Addresses all four sustainability dimensions: environmental, social, cultural, and economic
→Is proportionate to the hotel's size, capacity, and activities
→Includes both a sustainability policy and measurable targets
→Is reviewed at least annually, with documented evidence of that review
→Results in updated targets or actions when monitoring shows a need for improvement

Source:GSTC Hotel Standard v4.0, Criterion A1

My hotel already practises sustainability informally — does informal practice count?

Partially. Certification requires documented, verifiable evidence — not demonstrated intent. A hotel that separates waste, uses energy-efficient lighting, and sources locally but has no written records, policies, or monitoring data is likely practising sustainability but cannot evidence it to a CB. The process of preparing for certification typically involves formalising existing practices: writing the policy, starting measurement systems, and building a paper trail that reflects what the hotel already does.

GSTC publishes no answer to this. TavaSIS’s own reading, based onGSTC Hotel Standard v4.0, Criterion A1

Where do hotels most often come up short at a first assessment?

On documentation of the management system rather than on practice. The recurring gaps are a policy that was never written down, targets that are not measurable or time-bound, staff who cannot say what the hotel has committed to, and no record of monitoring or of the annual review having happened. The shortfall is rarely in what the hotel does; it is in what the hotel can show. That is our own observation from preparing evidence, not a GSTC statistic — and how any gap is classified is the Certification Body’s judgement.

GSTC publishes no answer to this. TavaSIS’s own reading, based onGSTC Hotel Standard v4.0, Criterion A1

Plan

  • · Written policy
  • · Measurable targets
  • · Documented actions
›

Do

  • · Actions implemented
  • · Staff trained
  • · Communicated
›

Monitor

  • · Performance tracked
  • · Data recorded
  • · Ongoing
›

Review

  • · Annual review
  • · Targets updated
  • · Documented

↺ The cycle repeats — continuous improvement is required at every certification renewal

Cluster 5

Evidence

What counts, what doesn't, and how to build it efficiently

What counts as evidence under GSTC-H?

Evidence is any documented proof that a performance indicator is met. This includes: written documents (sustainability policy, procedures, supplier contracts), records (utility bills, waste logs, training attendance sheets, purchase invoices), photographs (facility conditions, equipment), third-party certificates (staff training certificates, supplier certifications), and reports (annual sustainability reviews, community investment summaries). Evidence must be current and relevant to the specific performance indicator it is intended to satisfy.

GSTC publishes no answer to this. TavaSIS’s own reading, based onAccreditation Manual v5.0, Clause 8.11.4

Can one document satisfy multiple performance indicators?

Yes. A single document — for example, a comprehensive supplier selection policy that addresses local procurement, environmental standards, and fair labour practices — may satisfy performance indicators across Sections A, B, and D simultaneously. Structuring your evidence to serve multiple performance indicators substantially reduces the total volume of documentation required.

GSTC publishes no answer to this. TavaSIS’s own reading, based onAccreditation Manual v5.0, Clause 8.11.4

What are the most common evidence gaps hotels discover during preparation?

→No written sustainability policy
→No utility consumption monitoring records (energy and water by type)
→No documented staff training in sustainability topics
→No supplier assessment records
→No annual sustainability review with documented outcomes

GSTC publishes no answer to this. TavaSIS’s own reading, based onGSTC Hotel Standard v4.0, Criteria A1, A4, A7, A13, D1, D2

My hotel doesn't have written policies yet. Can I write them now?

Yes, but with a critical condition: a policy written for the purpose of certification with no implementation history will not satisfy the standard. GSTC-H requires that policies be operational — communicated to relevant staff, reflected in actual practice, and generating records over time. The practical minimum is to implement the policy, communicate it to staff, begin monitoring, and accumulate records before submitting to the CB for Document Review.

GSTC publishes no answer to this. TavaSIS’s own reading, based onGSTC Hotel Standard v4.0, Criterion A1

Cluster 6

The baseline performance requirements

Critical for all hotels; essential for GSTC-I transition

What are the baseline performance requirements in GSTC-H v4.0?

GSTC Hotel Certification is process-based: it sets out what should be done, not how to do it, and not whether the goal has been achieved. The baseline performance requirements are GSTC’s answer to that. At these points a certified hotel has to demonstrate real, measurable action and results, and continuous improvement.

There are 16 requirements, made up from 12 performance indicators, covering 4 criteria — procurement (A13), decent work (B9.4), energy conservation (D1) and water conservation (D2). They come in two kinds: qualitative conformity with policies and procedures, and quantitative targets whose performance increases over the certification cycle.

These are not guidelines. A hotel must demonstrate conformity against them, and will be audited on them. Each is written as “CB shall verify that…”, separately for initial certification, first renewal and second renewal.

⚠️ Be careful which unit you count in. “Twelve” and “sixteen” are both right about different things: A13.9 and D1.4 carry two requirements each and D2.5 carries three, so a bare number is ambiguous.

Source:GSTC Hotel Standard v4.0, Baseline performance requirements, A13, B9.4, D1, D2

Do the thresholds escalate at renewal?

Some do. Of the 16, 8 tighten at a later renewal, 5 are identical at every cycle and are simply maintained, and 3 are not assessed at initial certification at all. It is a staged pathway, not a uniform ratchet.

Where there is a figure, it is published in the standard — 30/50/80% LED lighting, 25% then 50% of fresh goods by expenditure, 90% of toilets at 6 litres per flush, 90% of HVAC rooms with keycard switches. Your CB applies those numbers; it does not set them.

Several are written as comparisons — increased in share of expenditure since the prior audit, increased percentage of water-efficient equipment, wages increased over time. Keeping a record of performance today is what makes the improvement provable later.

Source:GSTC Hotel Standard v4.0, Baseline performance requirements: A13.6, A13.9, B9.4, D1.3, D1.4, D2.5, D2.7

I’m just starting — where should I focus first?

Split them into the ones you can decide and the ones you have to count. Several need a decision and a purchase order rather than a measurement system — replacing single-use guest amenities with bulk dispensers, eliminating single-use plastics where feasible, removing unregulated, threatened or endangered species from food, souvenirs and entertainment, writing the purchasing policy, documenting outdoor watering guidelines. Those can be closed comparatively quickly.

The rest need data you can only accumulate: the proportion of fresh goods bought locally by expenditure, wage records against a living-wage benchmark, the share of LED lighting, the state of your toilets and showerheads. Start counting those now even if today’s figure is below the threshold — a number with a history behind it is worth more than a better number with none.

A third group is neither: LED lighting to 80%, 90% of cisterns at 6 litres, faucet and showerhead replacement, keycard switches. Those are procurement and refurbishment programmes, and they need budgeting ahead of the audit rather than closing in the weeks before it.

GSTC publishes no answer to this. TavaSIS’s own reading, based onGSTC Hotel Standard v4.0, Baseline performance requirements

A13 · Procurement

7 requirements

The purchasing policy, bulk dispensers, single-use plastics, endangered species, local fresh goods by expenditure, the increase in sustainable purchases, and supplier evaluation.

B9.4 · Decent Work

1 requirement

Wages. A documented wage complying with national legislation at initial certification, plus a plan where that is only the minimum; a living wage against a benchmark tool from first renewal.

D1 · Energy Conservation

3 requirements

A business plan for increasing renewable electricity, LED coverage including back-of-house, and keycard switches in HVAC guest rooms at second renewal.

D2 · Water Conservation

5 requirements

Toilet cisterns, a plan for water-efficient faucets and showerheads, water-conscious cleaning procedures, outdoor watering guidelines, and a linen reuse programme.

Scope 1 and Scope 2 greenhouse gas tracking is not one of these 16

It is criterion D3, and it is mandatory in its own right: annual reduction targets for Scope 1 and Scope 2, reported in your annual sustainability report. We say so here because this is where most people expect to find it.

The full briefing — all 16, cycle by cycle

GSTC’s own wording for every requirement at each of the three cycles, which 8 tighten and which 5 do not, and which thresholds need capital planning. Printable, so you can share it with an owner or GM. It is also the pre-read for our free Gap Analysis.

Read the baseline performance requirements briefing →

Cluster 7

During the audit — nonconformities

For hotels in the certification process

What is a nonconformity?

A nonconformity is a formal finding issued by the CB when a performance indicator is not met. It does not by itself mean certification is refused — it is a documented gap that has to be closed. There are two categories: Major and Minor.

Source:Accreditation Manual v5.0, Clause 8.15.1·GSTC Accreditation Glossary v1.0, 3.74–3.75

What is the difference between a Major and a Minor nonconformity?

GSTC defines them by EFFECT, not by how much is missing. A Major is one that “affects the capability of the management system to achieve the intended results”; a Minor is one that does not. Both definitions come from ISO/IEC 17021-1:2015. The Glossary adds that a nonconformity may be classified Major where there is significant doubt that effective process control is in place — and, importantly, that a number of Minor nonconformities against the same requirement can together demonstrate a systemic failure and so constitute a Major one. So do not assume “partially met” is automatically Minor: several partials against one requirement can add up.

Source:GSTC Accreditation Glossary v1.0, 3.74–3.75, citing ISO/IEC 17021-1:2015

How long does my hotel have to resolve a nonconformity?

Both get 90 days. The Manual sets a 90-day window from the issue date for a Major (8.15.2.1) and, identically, 90 days for a Minor (8.15.3.1). What differs is what closing requires: for a Major, evidence of both correction and corrective action, with sanctions if the closing is insufficient; for a Minor, evidence of correction documented within the 90 days, with the corrective action verified at your next audit — and an insufficient closing upgraded to a Major. Do not read that next-audit verification as the deadline; the 90-day clock applies to both.

Source:Accreditation Manual v5.0, Clauses 8.15.2.1–8.15.2.4 and 8.15.3.1–8.15.3.5

What happens if a Major nonconformity cannot be resolved in 90 days?

The Manual is less specific than people expect: where the closing is not sufficient, “CBs shall implement sanctions” (8.15.2.4). It does not enumerate them, so which sanction applies, and whether certification can be issued or maintained at all, is the CB’s decision under its own procedures — taken by someone who did not carry out the evaluation. Ask your CB what its sanctions are before you are in that position rather than after.

Source:Accreditation Manual v5.0, Clauses 8.15.2.4 and 8.16.1

Cluster 8

After certification

For currently certified hotels and those with lapsed certification

How long is GSTC Hotel certification valid?

Certification is issued for a three-year period from the date of issue. Annual surveillance audits are required during the certification period. At the end of three years, the hotel undergoes a full recertification audit assessed against the current version of GSTC-H.

Source:Accreditation Manual v5.0, Clauses 8.10.4 and 8.10.5

What is a surveillance audit?

A surveillance audit is a periodic verification conducted by the CB between initial certification and recertification. It confirms that the hotel continues to meet the standard's requirements and that the SMS is operating as documented. Surveillance audits are typically shorter than the initial certification audit.

Source:Accreditation Manual v5.0, Clauses 8.10.4, 8.14.3, 8.18.5

My hotel's GSTC certification has expired — what do I do?

An expired certification means the hotel no longer holds current GSTC certification and should not be represented as GSTC-certified in marketing. Contact a GSTC-Accredited CB. The CB will assess the hotel's current state against GSTC-H v4.0. There is no accelerated pathway for previously-certified hotels — recertification follows the standard process.

GSTC publishes no answer to this. TavaSIS’s own reading, based onAccreditation Manual v5.0, Clauses 8.10.4, 8.10.5·Accreditation Manual v5.0, Clauses 8.4.1 and 8.4.2

Can my hotel use the GSTC certification mark in marketing?

Only hotels with current, active certification are authorised to use GSTC certification marks. Using a GSTC certification claim after certification has expired is not authorised and may constitute a misleading claim under consumer protection regulations including EU Directive 2024/825.

Source:Accreditation Manual v5.0, Clauses 8.4.1 and 8.4.2·Directive (EU) 2024/825 (EUR-Lex)

Cluster 9

Transition from GSTC-I and comparison with other standards

For hotels certified under GSTC-I or other sustainability programmes

What is GSTC Industry Standard, and how does it differ from GSTC-H v4.0?

GSTC-I was the GSTC Industry Criteria, v3 (21 December 2016) — a single criteria set covering hotels and accommodations and tour operators, published with a separate performance-indicator set for each. Its fourth revision split it in two, as the Hotel Standard’s own opening footnote records: “the standard has been separated to GSTC Hotel Standard and GSTC Tour Operator Standard”.

What is genuinely new in v4.0: the baseline performance requirements with their published figures; responsible procurement written out in far more detail; circular-economy and single-use-plastic provisions; and electric vehicle charging stations for guests and staff, on site or by agreement nearby.

⚠️ One thing often said about this and wrong: GSTC-I did not merely encourage measuring emissions. Its D2.1 required that greenhouse gas emissions be “identified, calculated where possible” and that they be “monitored and managed”. The word “encouraged” in that criterion attaches to offsetting. The real change is that the “where possible” qualifier is gone, Scope 1, 2 and 3 are named explicitly, annual reduction targets are required for Scope 1 and 2, and the figures are reported in the annual sustainability report.

Source:GSTC Hotel Standard v4.0, Opening footnote, D3·GSTC Industry Criteria v3 (2016), D2.1

My hotel is currently certified under GSTC-I — do I need to transition?

Yes — there is a three-year transition period and the hard date is 30 December 2028, after which only certification to v4.0 is valid. On timing within that window, be careful of a common overstatement: GSTC’s Transition Guidelines set out “recommended approaches for transition audits, including during surveillance or recertification” — recommended, not mandated at your very next audit. Either way you do not restart the process from the beginning. Your CB will tell you which audit it intends to assess against v4.0.

Source:GSTC — Transition Guidelines for the Hotel and Tour Operator Standards

What are the three most important things a GSTC-I certified hotel needs to prepare for?

→
Start measuring: The 16 baseline performance requirements have quantified thresholds. Hotels meeting GSTC-I through documented systems alone may fall short — begin monitoring procurement spend, energy, water, and employment data now.
→
Tighten GHG tracking: GSTC-I already required emissions to be identified, calculated where possible, and monitored. v4.0 removes the 'where possible', names Scope 1, 2 and 3, requires annual reduction targets for Scope 1 and 2, and expects the figures in your annual sustainability report. If you were measuring loosely, the gap is rigour rather than a standing start.
→
Review procurement documentation: Responsible sourcing criteria are more specific under GSTC-H — supplier selection records should include environmental and social criteria, not just commercial terms.

GSTC publishes no answer to this. TavaSIS’s own reading, based onGSTC Hotel Standard v4.0, Baseline performance requirements, D3, A13

I'm certified under Green Key, EarthCheck, or ISO 14001 — does that count for GSTC?

Check the GSTC-Recognized list for hotels — but read what Recognition means, because it is narrower than it sounds. It applies to a standard, not to a certification: GSTC has reviewed that standard and found it equivalent to its own. In GSTC’s words, Recognition “does not relate to the process of certification, nor to accreditation” and “does not ensure that the certification process is reliable”. So a certificate issued under a Recognized standard is not automatically the same as one from a GSTC-Accredited CB — the first says the yardstick is right, the second says the measurer is competent and impartial.

ISO 14001 is a different case again: it certifies that you operate an environmental management system, not that your performance meets sustainability criteria, and it covers none of the social, cultural or community ground. It is genuinely useful evidence toward parts of Sections A and D, and it substitutes for nothing.

Source:GSTC — Certification, Accreditation, Recognition·GSTC-Recognized Standards for Hotels

Can evidence from my previous GSTC-I certification cycle be used in my GSTC-H assessment?

Yes, where performance indicators are equivalent and evidence is current. Energy bills, training logs, community records, and policy documents remain valid if recent. GSTC sets no age limit, so currency is a judgement your CB makes against the specific indicator — a policy document ages differently from a utility reading. Where an indicator turns on ongoing monitoring, what matters is that the series is unbroken rather than that any single record is recent.

GSTC publishes no answer to this. TavaSIS’s own reading, based onAccreditation Manual v5.0, Clause 8.11.4

30 Dec 2025

GSTC-H v4.0 published

New hotel certifications assessed against GSTC-H from this date.

Now

Begin preparing for GSTC-H requirements

Start measurement systems for the 16 baseline requirements. Establish GHG tracking. Review procurement documentation.

Next audit

Transition takes effect

GSTC recommends transitioning during a surveillance or recertification audit — recommended, not mandated at the next one. Hotels do not restart the certification process.

30 Dec 2028

Mandatory transition deadline

All hotels must have transitioned from GSTC-I to GSTC-H v4.0. GSTC-I certification will no longer be valid after this date.

Hotels

Free Hotel Gap Analysis

Covers the twelve indicators carrying the baseline performance requirements — the mandatory minimum thresholds, not a sample of the 205.

Here you create the account yourself and start straight away, with a Hotel Gap Analysis Report to download at the end.