How to Build a Sustainable Procurement Policy That Stands Up to Scrutiny

Sustainable procurement is no longer a “nice to have” - it’s a business imperative. 

From increasing ESG expectations to growing regulatory scrutiny around environmental claims, organisations are under more pressure than ever to ensure their purchasing decisions are credible, defensible, and aligned with genuine sustainability outcomes. 

But here’s the challenge: sustainability is complex. Supply chains are opaque. Claims can be difficult to verify. And with greenwashing firmly in the spotlight, getting it wrong carries real reputational and commercial risk. 

So how do you build a sustainable procurement policy that not only delivers impact, but also stands up to scrutiny? 

Here are four practical steps to guide you. 

1. Start with what matters most to your organisation

A strong procurement policy starts with clarity. 

Sustainability isn’t one-dimensional - it spans environmental impact, human health, social responsibility, and ethical supply chains. Trying to tackle everything at once can quickly become overwhelming. 

Instead, focus on what matters most to your organisation: 

• Are you prioritising emissions reduction?

• Human rights and modern slavery? 

• Circularity and waste minimisation? 

• Safer products for people and indoor environments? 

Your priorities should align with your organisational values, risk profile, and stakeholder expectations. From there, build in a commitment to continuous improvement - because sustainability is not static. 

2. Set clear, credible procurement criteria

Once your priorities are defined, the next step is translating them into practical, measurable criteria. 

This is where many organisations come unstuck. 

Without clear benchmarks, procurement teams are left navigating vague claims like “eco-friendly” or “sustainable” - terms that are not only difficult to verify, but increasingly scrutinised by regulators. 

Frameworks like ISO 20400 provide a useful foundation, covering key areas such as:

• Environmental impact 

• Human rights and labour practices

• Fair operating practices 

• Consumer issues 

• Community impact 

But guidance alone isn’t enough. Your criteria need to be:

• Specific - clearly defined and relevant to your category

• Evidence-based - backed by verifiable data 

• Consistent - applied across suppliers and decisions 

All your suppliers will tell you that you are the business case for improving their sustainability outcomes.  You will get whatever you set as the minimum requirement for action.  This is what turns good intentions into defensible procurement decisions. 

If you are unsure about which benchmarks to use, look for an appropriate ecolabel standard to inspire you—or simplify your processes by using the ecolabel as the standard for your procurement.  Trustworthy ecolabels have already done the hard yards of balancing sustainability ambition with what is economically achievable, so by leveraging them, you ensure your criteria and standards are aligned with good practice in your industry.    

3. Use independent certification to derisk and cut through complexity

One of the biggest challenges in sustainable procurement is verification. 

How do you know if a product or service genuinely meets your criteria? 

Reviewing supplier claims individually is time-consuming, resource-intensive, and often unreliable -particularly in a market where greenwashing remains widespread. 

This is where independent, third-party certification becomes essential. 

Lifecycle ecolabels - like GECA - provide a shortcut to credible decision-making by: 

• Assessing products and services against robust, science-based standards 

• Covering environmental, human health, and social impacts across the full lifecycle 

• Verifying claims through independent, third-party assurance 

Instead of starting from scratch, procurement teams can rely on certification as a trusted signal that a product or service has already met rigorous sustainability criteria. 

It’s not just about saving time - it’s about reducing risk. 

By specifying independently certified products and services, you can:

• Strengthen the integrity of your procurement decisions 

• Reduce exposure to misleading or unsubstantiated claims 

• Align with best practice frameworks and green building requirements 

• Build confidence with internal stakeholders and external audiences 

In a landscape where scrutiny is increasing, this level of assurance is invaluable.

4. Track, measure, and communicate your decisions

A sustainable procurement policy doesn’t end at purchase - it needs to be embedded into how your organisation operates and communicates. 

Start by keeping clear records of procurement decisions:

• What was purchased 

• Why did it meet your criteria  

• What sustainability outcomes does it deliver 

This creates a defensible audit trail and allows you to measure progress over time. 

Just as importantly, communicate your approach. 

Transparency builds trust – improving your connections with staff and other internal stakeholders, customers, and regulators. It also reinforces your organisation’s commitment to doing things properly, not just saying the right things.

In today’s environment, credible communication is just as important as credible action.

Why this matters now

With regulators like the ACCC increasing their focus on environmental claims, businesses are expected to ensure that any sustainability-related decisions - including procurement - are accurate, evidence-based, and not misleading. 

That means: 

• No vague or unsubstantiated claims 

• No over-reliance on supplier marketing 

• No gaps between what’s promised and what’s delivered 

A well-designed sustainable procurement policy helps you navigate this landscape with confidence — turning a potential risk into a strategic advantage.

Ready to take the next step?

Building a sustainable procurement policy doesn’t have to be complex - but it does need to be credible. 

At GECA, we work with organisations across government, industry, and the built environment to simplify sustainable procurement and strengthen decision-making. 

Whether you’re just getting started or looking to refine your approach, we can support you with: 

• Sustainable procurement frameworks and policy development 

• Guidance on responsible sourcing and supplier evaluation 

• Access to independently certified products and services 

• Training and resources for your teams 

Get in touch with our team to explore how GECA can support your procurement strategy - and help you make decisions that stand up to scrutiny.