If you have seen “ISO 20121” on an organiser’s sustainability page or in a stand builder’s proposal and wondered what it actually requires of you, you are in good company. It is one of the most quoted and least explained badges in the events industry.
Here is the short version. ISO 20121 is an international standard for running an event business in a sustainable, structured way. It does not hand you a checklist for your booth, and it does not certify a stand as “green”. What it does is change how the people around your stand make decisions: your organiser, your venue and your builder.
This guide explains what the standard is, what changed in the 2024 edition, and what it means in practice when you exhibit. At the end, there is a list of questions to put to any exhibition stand contractor before you sign.
What is ISO 20121?
ISO 20121 is the international standard for event sustainability management systems (ESMS). ISO describes it as a framework that helps organisations build sustainability into every part of event planning and delivery. The key phrase is management system. It is the same family of thinking as ISO 9001 (quality) and ISO 14001 (environment), applied to events.
A few facts worth knowing:
- It certifies an organisation’s way of working, not a single product or event. A company can be certified, and an event can be run “in line with” the standard, but a stand is not “ISO 20121 certified” on its own.
- It looks at three dimensions together: social, economic and environmental impact. Waste and carbon are part of it, but so are fair labour, supplier behaviour, accessibility and the legacy an event leaves behind.
- It has a clear history. It was first published in 2012, inspired by the London Olympic and Paralympic Games, and its 2024 revision was inspired by Paris 2024.
- It is for everyone in the chain. Organisers, venues, agencies and exhibition stand builders can all work to it.
What changed in ISO 20121:2024?
The second edition replaced the 2012 version. According to BSI’s summary of the changes, the text now follows the harmonised structure used by other ISO management standards, which makes it easier to combine with them. It also strengthens environmental, social and governance (ESG) requirements and adds climate change considerations.
For exhibitors, three shifts matter most:
- Climate change must be considered. Organisations can no longer treat it as optional background.
- Supply chains get more attention. Under the 2024 edition, suppliers are managed on a risk basis, and sponsors who provide products or services count as suppliers too. Anyone who builds, ships or services your stand sits inside that chain.
- Social impact and legacy are more explicit. ISO highlights human and children’s rights and event legacies as new areas of focus.
Timing: BSI states that there is a three-year transition period from 3 April 2024 to 31 March 2027. Certificates issued to the 2012 version will need to move to the 2024 edition within that window, so it is reasonable to ask a supplier which edition their certificate refers to.
Why should exhibitors care?
You may never read the standard itself. But it affects you in three practical ways.
- Show-floor rules are tightening. Organisers and venues certified to ISO 20121 increasingly pass requirements down to exhibitors: waste reporting, restrictions on single-use build materials, and guidance on what happens to stands after a show. Knowing the logic behind these rules makes compliance easier and avoids last-minute surprises.
- Buyers and corporate procurement teams are asking. Sustainability questions now appear in exhibitor briefs, tenders and internal approval processes. A stand builder that works to a recognised management standard gives you evidence to point to, rather than a vague green claim.
- It can lower cost over time. A management system pushes a supplier to plan reuse, track materials and reduce rework. For a company that exhibits several times a year, that discipline often matters more than any single eco-material.
What does an ISO 20121 certified stand builder actually do differently?
A certification should show up in daily practice. Here is what it looks like at BuilderDeck, which is ISO 20121 certified and has been building exhibition stands for more than ten years.
- Design for reuse from the first sketch. Our modular exhibition stands are built so that structure can be refreshed, re-graphed and redeployed. Across our work, up to 70% of a stand’s structure can be reused for the next show.
- Keep assets between shows. Through our store and reuse programme, components are audited, refurbished and stored rather than scrapped after a single event.
- Cut waste before it is built. Our 3D visuals and technical drawings let you approve a stand months in advance, which reduces late changes and the offcuts and reprints that come with them.
- Use in-house crews. Fewer subcontractor hand-offs means clearer accountability for labour conditions, materials and waste, which is exactly what the supply chain requirements of the standard are about.
- Offer rental where it fits. For brands on a heavy show calendar, rental booths avoid building a new stand for every city.
The same thinking applies at larger scales. A custom exhibition stand can still use reusable frames and recyclable substrates, and a double-decker stand or country pavilion benefits most from careful material planning because of the sheer volume involved.
You can see the results across our portfolio.
What ISO 20121 does not mean
It helps to be clear about the limits, because this is where “greenwashing” creeps in.
- It does not mean every material is sustainable. The standard requires a process for identifying and managing impacts; it does not ban particular materials.
- It is not a carbon calculator. A certified organisation still needs to measure emissions separately.
- It does not guarantee a specific stand outcome. Two certified builders can deliver very different footprints depending on scope and choices.
- A logo alone proves little. What matters is the scope of the certificate, the edition, and whether the builder can describe real decisions made on real projects.
This is also why material choice deserves a hard look. In Beyond the Bamboo, we separate the decisions that genuinely change a stand’s footprint from those that simply photograph well.
How to plan sustainably into your next show
Sustainability is cheapest when it is decided early. A few practical steps:
- Start with the show manual. Check the organiser’s environmental rules and reporting requirements before design begins.
- Lock the reuse plan at briefing stage. Decide whether this stand needs to travel to future shows, and design for it.
- Allow enough lead time. Rushed builds rarely allow for reuse planning. Our Hannover Messe 2027 planning timeline shows how much work happens in the final 24 weeks.
- Think about freight early. Logistics is one of the largest hidden sources of impact and cost. See Drayage and the Atlantic Gap for what moving a booth really involves.
- Adapt, don’t rebuild. If you are changing identity or messaging, read Rebrand to Booth Redesign to see how much of an existing stand can be kept.
- Plan for each market separately. Rules and expectations differ by region, as covered in Frankfurt vs Las Vegas Booths and Exhibiting in the UAE.
Questions to ask any stand builder about ISO 20121
Before you sign a proposal, ask:
- Is your company certified, to which edition (2012 or 2024), and by which body?
- What is the scope of the certificate? Does it cover design, fabrication, installation and dismantle?
- Can you show one real example of a reuse or waste decision on a past project?
- How do you manage subcontractors and suppliers against sustainability criteria?
- What happens to my stand after the show: storage, reuse, recycling or disposal?
- Will you provide material and waste information if the organiser asks for it?
A good builder will answer these directly. If the answers are vague, treat the badge with caution.
Talk to a certified exhibition stand team
If you want to understand how these principles would apply to your next show, our team can walk you through reuse options, materials and logistics for your specific stand size and venue. Explore our exhibition stand services, read more on The Floor Notes blog, or request a quote and a senior designer will respond within one business day.
Sources: ISO, ISO 20121:2024 Event sustainability management systems; BSI, ISO 20121:2024 transition FAQ; Positive Impact Events, What is ISO 20121:2024?
