ISO 21121 certification is an international standard designed to help organizations plan, deliver, and manage events in a sustainable, socially responsible, and environmentally conscious manner. The standard provides a structured event sustainability management system that integrates environmental, social, and economic considerations into every stage of event planning and execution.
ISO 21121 applies to all types of events—corporate events, exhibitions, conferences, sports events, cultural festivals, and public gatherings—regardless of size or location. It enables event organizers to reduce negative impacts while maximizing positive outcomes for communities, stakeholders, and the environment.
Events can have significant environmental and social impacts, including waste generation, energy consumption, carbon emissions, and community disruption. An effective event sustainability management system helps organizations identify and control these impacts systematically.
Key reasons organizations adopt ISO 21121 include:
Reducing environmental footprint of events
Demonstrating social responsibility and ethical practices
Meeting client, sponsor, and regulatory expectations
Enhancing brand reputation and credibility
Supporting long-term sustainability goals
ISO 21121 turns sustainability into a practical and measurable management approach rather than a one-time initiative.
Sustainable event planning under ISO 21121 ensures that sustainability is embedded from the earliest planning stage through post-event evaluation. The standard encourages organizers to consider sustainability across the entire event lifecycle.
This includes:
Responsible venue selection
Efficient energy and water use
Sustainable procurement and supplier selection
Waste reduction and recycling
Community engagement and inclusion
Health, safety, and accessibility
By applying ISO 21121, organizations can deliver successful events while minimizing negative impacts and creating lasting positive value.
Green events ISO 21121 focus on reducing environmental harm while maintaining high event quality. The standard supports environmentally responsible practices such as:
Minimizing single-use plastics
Reducing carbon emissions and travel impact
Efficient use of resources
Environmentally friendly materials and branding
Sustainable catering and logistics
ISO 21121 provides measurable objectives and controls to ensure green initiatives are planned, implemented, and reviewed effectively.
ISO 21121 applies to:
Event management companies
Corporate event organizers
Exhibition and conference organizers
Sports and cultural event bodies
Government and public event authorities
NGOs and non-profit organizations
The standard can be implemented for a single event or integrated across an organization’s entire event portfolio.
Understanding ISO 21121 requirements is essential for effective implementation. The standard follows the Plan-Do-Check-Act (PDCA) cycle and includes the following key elements:
Top management must demonstrate commitment to sustainability and support the event sustainability management system.
Organizations must establish a sustainability policy aligned with environmental, social, and economic objectives.
Relevant stakeholders—including clients, suppliers, communities, and authorities—must be identified and engaged appropriately.
Organizations must identify sustainability impacts related to the event and assess associated risks and opportunities.
Clear sustainability objectives, targets, and action plans must be established.
Processes must be implemented to control sustainability aspects such as waste, energy, transport, procurement, and safety.
Sustainability performance must be monitored, measured, and documented.
Post-event evaluation and continual improvement are required to enhance future event sustainability.
The typical ISO 21121 certification journey includes:
Gap Analysis
Assess current event practices against ISO 21121 requirements.
System Design & Documentation
Develop sustainability policies, procedures, and plans.
Implementation
Apply sustainability controls across event planning and delivery.
Training & Awareness
Train staff and stakeholders on sustainability responsibilities.
Monitoring & Review
Track performance and address gaps.
Certification Assessment
External audit to demonstrate conformity with ISO 21121.
Reduced environmental impact of events
Improved stakeholder and community trust
Enhanced brand image and market differentiation
Better risk management and compliance
Cost savings through efficient resource use
Alignment with global sustainability goals
ISO 21121 demonstrates a strong commitment to responsible and sustainable event management.
Professional ISO 21121 consultancy helps organizations:
Interpret sustainability requirements correctly
Develop practical event sustainability systems
Train teams and suppliers effectively
Reduce certification time and audit issues
Achieve measurable sustainability results
Expert support ensures smooth and successful ISO 21121 implementation.
ISO 21121 certification is an international standard that helps organizations establish an event sustainability management system to plan and manage events with reduced environmental impact and improved social responsibility.
ISO 21121 applies to event management companies, corporate event organizers, exhibition and conference organizers, sports and cultural event bodies, NGOs, and public authorities involved in planning or delivering events.
ISO 21121 can be applied to all types of events, including corporate events, exhibitions, conferences, trade shows, sports events, festivals, concerts, and public or community events.
ISO 21121 supports sustainable event planning by requiring organizations to identify environmental and social impacts, set sustainability objectives, implement controls, and evaluate performance before, during, and after events.
No. ISO 21121 covers environmental, social, and economic sustainability, including waste reduction, energy efficiency, community impact, accessibility, health and safety, and ethical supplier practices.
Contact Intermax Consultancy today to discuss how we can help you achieve your certification and compliance goals.