What are the 15 scope 3 categories?

Less than 1 minutemin

2 August 2026

Scope 3 emissions are the ones that tend to give sustainability teams the most headaches. Unlike scope 1 and 2, which cover what your organization directly emits or purchases as energy, scope 3 reaches far beyond your own operations. It captures everything from the raw materials your suppliers extract to what happens to your product after a customer throws it away. That’s a lot of ground to cover, and the GHG Protocol breaks it down into 15 distinct scope 3 categories to make it more manageable. Understanding these categories is the foundation of any serious climate strategy, especially as reporting expectations under frameworks like the CSRD continue to grow.

So, what are the 15 scope 3 categories exactly, and how do they fit together? Let’s walk through them in a way that actually makes sense.

How the 15 scope 3 categories are organized

The GHG Protocol divides the 15 scope 3 categories into two groups: upstream and downstream. Upstream categories cover activities that happen before goods or services reach your organization. Downstream categories cover what happens after your product or service leaves your hands. This split is useful because it helps teams prioritize where to focus, since emissions hotspots vary significantly depending on which direction you look in your value chain.

Together, the 15 categories are designed to be comprehensive without overlapping. Each one targets a specific type of activity or relationship in the value chain, so organizations can build a complete picture of their indirect emissions. Not every category will be relevant to every organization, but understanding the full map helps you figure out which ones actually matter for your situation.

Upstream scope 3 categories explained

The upstream half of the scope 3 framework covers eight categories, all focused on activities that occur before your organization takes ownership of goods or services.

Category 1: Purchased goods and services. This covers the emissions generated to produce everything your organization buys, from raw materials to office supplies to software subscriptions. For most companies, this is the largest single source of scope 3 emissions.
Category 2: Capital goods. These are the emissions associated with producing the equipment, machinery, and infrastructure your organization purchases and uses over time, such as manufacturing equipment or IT hardware.
Category 3: Fuel and energy-related activities. This captures emissions from the extraction, production, and transportation of fuels and energy that your organization uses, but that aren’t already counted in scope 1 or 2.
Category 4: Upstream transportation and distribution. The emissions from transporting goods from your suppliers to your facilities, including third-party logistics providers.
Category 5: Waste generated in operations. This covers the emissions from disposing of waste your organization generates, whether it goes to landfill, incineration, or another treatment method.
Category 6: Business travel. Flights, trains, hotels, and rental cars taken by employees for work purposes all fall here.
Category 7: Employee commuting. The emissions from employees traveling between their homes and their regular workplace, including remote work adjustments.
Category 8: Upstream leased assets. If your organization leases assets that aren’t already counted in scope 1 or 2, the emissions from operating those assets belong here.

What stands out across these eight categories is how much of your upstream footprint is shaped by decisions made before you even get involved. Supplier choices, procurement policies, and office location all quietly drive these numbers. Together, upstream categories often account for the bulk of total scope 3 emissions for organizations in manufacturing, retail, and services alike, which is why many scope 3 reduction strategies start here.

Downstream scope 3 categories explained

The downstream categories pick up where your operations end. There are seven of them, and they track what happens to your products and services once they leave your control.

Category 9: Downstream transportation and distribution. The emissions from transporting your finished products to customers, retailers, or end users after they leave your facility.
Category 10: Processing of sold products. Relevant when your products are intermediate goods that get further processed by another company before reaching the end user.
Category 11: Use of sold products. The emissions generated when customers actually use your product. For energy-consuming products like appliances or vehicles, this is often the largest downstream category.
Category 12: End-of-life treatment of sold products. What happens when your product is disposed of, recycled, or composted at the end of its useful life.
Category 13: Downstream leased assets. Emissions from assets that your organization owns but leases out to others.
Category 14: Franchises. For companies that operate franchise models, this covers the emissions from franchisee operations that aren’t already reported in the franchisor’s scope 1 and 2.
Category 15: Investments. This one is particularly relevant for financial institutions. It covers the emissions associated with loans, equity investments, and project finance.

Downstream categories are where product design decisions show up in your emissions data. How long a product lasts, how much energy it uses, and how easy it is to recycle all have a direct impact on categories 11 and 12. For companies in finance, category 15 is often the dominant source of scope 3 emissions by a wide margin. The downstream picture makes it clear that scope 3 isn’t just a supply chain problem. It’s a product strategy and business model conversation too.

Which scope 3 categories are most material for your sector

Materiality varies enormously across sectors, and not every organization needs to report on all 15 categories. The GHG Protocol allows companies to exclude categories that are genuinely not relevant to their business, as long as they can justify that decision.

For a consumer goods manufacturer, category 1 (purchased goods and services) and category 11 (use of sold products) are typically the biggest contributors. A professional services firm, on the other hand, is likely to find that category 6 (business travel) and category 7 (employee commuting) dominate its scope 3 profile. A bank or asset manager will almost certainly find that category 15 (investments) dwarfs everything else combined.

Frameworks like the CSRD and voluntary disclosures through CDP both push organizations to be specific about which categories are material and why. Getting this right matters because it shapes where you invest resources in data collection, supplier engagement, and reduction initiatives. Starting with a materiality assessment, rather than trying to measure everything at once, is a practical way to build a scope 3 program that’s both credible and actionable.

Common challenges in scope 3 data collection

Even with a clear framework in place, gathering scope 3 data is genuinely difficult. The information you need often lives outside your organization, in supplier systems, customer behavior, and logistics networks that you don’t control.

A few of the most common hurdles include:

Supplier data gaps. Many suppliers, especially smaller ones, don’t yet track or report their own emissions. This forces organizations to rely on spend-based estimates or industry averages, which can introduce significant uncertainty.
Boundary setting. Deciding exactly where your value chain starts and ends isn’t always straightforward. Overlapping boundaries between companies can lead to double-counting or missed emissions.
Data consistency. Even when suppliers do share data, it often comes in different formats, uses different methodologies, or covers different time periods, making it hard to aggregate meaningfully.
Category 11 complexity. Estimating how customers actually use your product in real-world conditions requires assumptions about usage patterns, geography, and energy sources that are difficult to verify.

These challenges don’t make scope 3 measurement impossible, but they do mean that building a robust dataset takes time, supplier engagement, and often a fair amount of methodological decision-making. Organizations that treat it as a one-time exercise tend to struggle. Those that build ongoing data collection into their supplier relationships and internal processes get much further. The good news is that tools, standards, and sector-specific guidance have improved considerably, and the quality of scope 3 data across industries is gradually getting better.

Ready to tackle your scope 3 emissions?

Scope 3 is one of the most complex areas in sustainability work, and it’s also one of the most impactful. Whether you’re starting a materiality assessment, trying to get supplier data under control, or preparing a CSRD-aligned disclosure, having the right expertise in your corner makes a real difference.

At Dazzle, we connect organizations with pre-screened sustainability freelancers who specialize in exactly this kind of work. From scope 3 emissions reduction consultants to CSRD reporting experts, our network covers the full range of specializations you might need. You can get matched with the right expert within 48 hours, whether you need support for a defined project or ongoing interim help. If you’re ready to make progress on your scope 3 journey, reach out to our team and we’ll find the right fit for your challenge.

This content was generated with the help of AI — it may contain mistakes