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GRI 306: Waste · 2020
Disclosure GRI 306-4

Waste diverted from disposal

Practical guidance for preparing this disclosure. Use this card to identify datapoints, verify claims and organise supporting evidence. For exact requirements, always refer to the official GRI source.

Dr Ross Kurinko, GRI Certified Trainer
Reviewed by Dr Ross Kurinko · GRI Certified Trainer LRA educational guidance · Not issued or endorsed by GRI
To prepare this disclosure
Disclosure focus

This disclosure asks an organisation to explain how much of its waste is kept away from final disposal, such as landfill or incineration without recovery, during the reporting period. In practice, it is about showing the amount of waste that was diverted through routes like reuse, recycling, composting, recovery or other treatment pathways that avoid disposal, using a clear and consistent basis for measurement.

The practical focus is on the organisation’s overall waste performance, not just a few well-performing sites. Readers should be able to see the extent of coverage across operations, how the diversion figure was determined, and whether the reported amount reflects all relevant waste streams or only selected locations or activities.

This LRA educational guidance supports disclosure preparation. For the exact requirements, always refer to the official GRI source.

Before you start

A quick mental checklist before you prepare this disclosure — tick each as you settle it.

Preparation

Key datapoints to prepare

Datapoint What to capture Evidence hint Owner
Total diverted waste The full weight of waste kept out of disposal routes in the reporting period, across all relevant waste streams included in the figure. Waste contractor summaries, site waste logs, and the consolidation workbook used to total diverted waste. Environment / Facilities
Waste mix categories The waste composition groupings used to describe the waste stream, with categories applied consistently across the dataset. Waste classification schedule, contractor descriptions, and the internal mapping used to group waste types. Environment / Facilities
Diverted waste detail The breakdown of waste kept out of disposal, showing the relevant waste amounts by the categories used in the report. Waste tracking records, transfer notes, and the working paper that splits diverted waste by category. Environment / Facilities
Hazardous diverted total The total weight of hazardous waste kept out of disposal in the period, before splitting it by recovery route. Hazardous waste manifests, contractor reports, and the summary schedule for hazardous waste diversion. Environment / Facilities
Hazardous reuse weight The hazardous waste weight sent for reuse after suitable preparation, measured in tonnes and limited to the reporting period. Hazardous waste recovery certificates, contractor invoices, and the site-level diversion log for reuse preparation. Environment / Facilities
Hazardous recycling weight The hazardous waste weight sent for recycling, measured in tonnes and limited to the reporting period. Hazardous waste recycling receipts, contractor statements, and the consolidation sheet for recycling tonnage. Environment / Facilities
Hazardous other recovery The hazardous waste weight sent to recovery routes other than reuse preparation or recycling, measured in tonnes. Hazardous waste treatment records, contractor certificates, and the mapping of recovery routes used in the workbook. Environment / Facilities
Non-hazardous diverted total The total weight of non-hazardous waste kept out of disposal in the period, before splitting it by recovery route. Non-hazardous waste transfer notes, contractor summaries, and the roll-up used to total non-hazardous diversion. Environment / Facilities
Non-hazardous reuse weight The non-hazardous waste weight sent for reuse after suitable preparation, measured in tonnes. Non-hazardous recovery certificates, contractor reports, and the site waste log for reuse preparation. Environment / Facilities
Non-hazardous recycling weight The non-hazardous waste weight sent for recycling, measured in tonnes. Recycling contractor statements, transfer documentation, and the working paper that totals recycling tonnage. Environment / Facilities
Non-hazardous other recovery The non-hazardous waste weight sent to recovery routes other than reuse preparation or recycling, measured in tonnes. Treatment certificates, contractor summaries, and the route mapping used to separate other recovery from recycling and reuse. Environment / Facilities
Onsite hazardous reuse The hazardous waste weight prepared for reuse and handled on site, measured in tonnes. Site waste records, internal treatment logs, and the onsite diversion schedule for hazardous material. Environment / Facilities
Onsite hazardous recycling The hazardous waste weight recycled on site, measured in tonnes. Site processing records, internal waste logs, and the onsite recycling tally for hazardous waste. Environment / Facilities
Onsite hazardous other recovery The hazardous waste weight sent through other onsite recovery routes, measured in tonnes. Site treatment records, internal waste logs, and the onsite recovery schedule for hazardous waste. Environment / Facilities
Onsite non-hazardous reuse The non-hazardous waste weight prepared for reuse and handled on site, measured in tonnes. Site waste records, internal diversion logs, and the onsite schedule for non-hazardous reuse preparation. Environment / Facilities
Onsite non-hazardous recycling The non-hazardous waste weight recycled on site, measured in tonnes. Site processing records, internal waste logs, and the onsite recycling tally for non-hazardous waste. Environment / Facilities
Onsite non-hazardous other recovery The non-hazardous waste weight sent through other onsite recovery routes, measured in tonnes. Site treatment records, internal waste logs, and the onsite recovery schedule for non-hazardous waste. Environment / Facilities
Offsite hazardous reuse The hazardous waste weight prepared for reuse and handled off site, measured in tonnes. Contractor certificates, transfer notes, and the offsite diversion schedule for hazardous waste. Environment / Facilities
Offsite hazardous recycling The hazardous waste weight recycled off site, measured in tonnes. Contractor recycling statements, transfer documentation, and the offsite recycling roll-up for hazardous waste. Environment / Facilities
Offsite hazardous other recovery The hazardous waste weight sent through other offsite recovery routes, measured in tonnes. Contractor treatment certificates, transfer notes, and the offsite route mapping for hazardous waste. Environment / Facilities
Offsite non-hazardous reuse The non-hazardous waste weight prepared for reuse and handled off site, measured in tonnes. Contractor certificates, transfer notes, and the offsite diversion schedule for non-hazardous waste. Environment / Facilities
Offsite non-hazardous recycling The non-hazardous waste weight recycled off site, measured in tonnes. Recycling contractor statements, transfer notes, and the offsite recycling roll-up for non-hazardous waste. Environment / Facilities
Offsite non-hazardous other recovery The non-hazardous waste weight sent through other offsite recovery routes, measured in tonnes. Contractor treatment certificates, transfer notes, and the offsite route mapping for non-hazardous waste. Environment / Facilities
Compilation notes Any context needed to understand the figures and the method used to assemble them, including key assumptions, boundaries, and aggregation steps. Method note, consolidation workbook, boundary memo, and any reconciliation or judgement log used in compilation. Environment / Facilities
+ Show GRI 306-4 sub-elements (LRA working checklist)

How to prepare it

1Set the reporting boundary first: decide which sites, activities, and waste streams are in scope for the period, and keep that boundary consistent with the source records you will use.
2Separate the waste into the required buckets before you total anything: distinguish hazardous from non-hazardous material, then sort each stream by the recovery route used and whether the treatment happened at your own site or elsewhere.
3Gather the underlying proof for every figure: weighbridge tickets, contractor statements, internal logs, transfer notes, and any other source that supports the mass reported for each category.
4Build the disclosure from the evidence: calculate the overall diverted amount, then populate each sub-total for the relevant waste type and recovery route, making sure the parts add up to the totals you present.
5Add the explanatory note that helps a reader follow the numbers: describe how the data was compiled, flag any exclusions, assumptions, restatements, or changes in method, and explain anything unusual that affects interpretation.
6Check the finished draft against the official source and your working papers: confirm every required item is present, the labels match the intended meaning, the units are shown where needed, and the figures reconcile to the evidence.
Request the data

Request waste diversion data from EHS / site operations

Translate the disclosure into an internal business question — then adapt it to your organisation's own language.

How much waste did we route away from final disposal in the reporting period, split by waste type, treatment route, and whether it was handled on site or by a third party?

Use your organisation’s own waste and site-operations terms first, then map them to the reporting fields. For example, if you say ‘general waste’, ‘trade waste’, ‘scrap’, ‘skip waste’, ‘hazardous consignment’, or ‘recovered material’, keep those labels in the request and only translate them when you prepare the reporting table. This is a training template; adapt it to your organisation and check the official source before sign-off.

Weak request

Please provide the GRI 306-4 waste diversion data, including all required categories and subcategories.

Why it fails: This uses framework language only, so the owner has to translate the request before they can act. It also does not say which sites, which records, which period, or how the figures should be split and evidenced.

Better request

Please send the waste diversion figures for [period] for [sites/boundary]. Use your normal waste names and include, for each stream, the amount diverted away from final disposal, the recovery route, whether it was handled on site or off site, the hazardous/non-hazardous split, the source record, and any assumptions or estimates used.

Formal email template
Subject: Request for waste diversion data for [reporting period]

Dear [name/team],

We are preparing the sustainability reporting pack and need your help with the waste data for [reporting period]. Please send the waste records for [sites / business units / boundary], using your normal operational terms where possible.

For each waste stream, please include:
- the waste name you use internally
- whether it is treated as hazardous or non-hazardous in your records
- the amount diverted away from final disposal
- the route used to recover the material
- whether the activity happened on site or off site
- the source record or system reference
- any notes needed to explain estimates, gaps, or unusual items

Please also include a short note on how the figures were compiled and any assumptions used.

If helpful, you can return the information in the table format below. This is a training template; please adapt it to your organisation and check the official source before sign-off.

Many thanks,
[preparer name]
[role]
[contact details]
Short Teams / Slack version
Hi [name], could you send the waste diversion figures for [period] for [sites/boundary]? Please use your usual site terms and include the waste type, hazardous/non-hazardous split, amount diverted, recovery route, on-site/off-site flag, source record, and any assumptions or gaps. A simple table is fine. Thanks.
Industry examples
Manufacturing

Context. A plant has scrap metal, packaging, process residues, and a small hazardous waste stream from maintenance activities.

Adapted request. Please provide the waste diversion data for [period] for [plant/site]. Use the site’s own waste labels, and include scrap metal, packaging, process residues, and maintenance waste where applicable. For each line, show the amount diverted away from final disposal, the recovery route, whether it was handled on site or off site, the hazardous/non-hazardous split, and the source record.

Example response. The site returns a table showing 42.6 tonnes of scrap metal recycled off site, 18.4 tonnes of cardboard recycled off site, 6.2 tonnes of process residue sent to an other recovery route off site, and 1.1 tonnes of hazardous maintenance waste recovered off site through a recycling route, with contractor references and weighbridge tickets attached.

Hospitality

Context. A hotel group tracks food waste, glass, cardboard, cooking oil, and occasional hazardous cleaning-product waste across multiple properties.

Adapted request. Please send the waste diversion figures for [period] for [properties/boundary]. Use your usual property-level waste names. For each stream, include the amount diverted away from final disposal, the recovery route, whether it was handled on site or off site, the hazardous/non-hazardous split, and the source record or contractor report.

Example response. The team provides a consolidated table showing 24.8 tonnes of food waste sent off site for recycling, 11.3 tonnes of glass recycled off site, 9.7 tonnes of cardboard recycled off site, and 0.4 tonnes of hazardous cleaning-product waste recovered off site through a reuse route, with monthly contractor summaries and site logs noted.

Draft your disclosure

Notes that turn data into a disclosure

LRA training templates — adapt them to your organisation, and check the official source before sign-off.

Method note

State how you defined waste diverted from disposal, which waste streams were included, and whether the figures cover only the reporting period and sites in scope.

Context note

Explain what the totals mean in practice by linking the diverted amounts to the organisation’s waste mix and the recovery routes used, including any split between hazardous and non-hazardous material.

Fluctuation statement

If the figures moved materially, note the operational drivers behind the change, such as shifts in waste composition, changes in recovery route, or more or less onsite treatment.

Content index entry
GRI 306-4 Waste diverted from disposal — [location / page] / [notes]
Download Centre

Preparation tools & forms

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Assurance readiness

For each claim, check the evidence

ClaimRiskEvidence to check
I compiled the coverage figure from the waste records we held for the reporting period, then checked that the totals matched the underlying source logs before sign-off.An assurer will probe whether the total was built from complete records, whether any sites or streams were left out, and whether the arithmetic ties back to source data.Waste transfer notes, contractor summaries, site registers, consolidation workbook, calculation file, and final review sign-off showing the total reconciles to the source records.
I separated the waste into the categories used in our internal tracking so the reported split reflects how the material was handled in practice, not just how it was labelled in one system.An assurer will test whether the category split is consistent across sites and systems, whether items were classified on a stable basis, and whether any mixed or ambiguous loads were treated consistently.Waste classification guidance, coding matrix, sample transaction records, contractor descriptions, and evidence of review where borderline items were assigned to a category.
I based the diverted amount on the same underlying dataset as the rest of the waste figures and checked that the subset rolled up correctly to the overall total.An assurer will look for double counting, missing items, or a subset that does not reconcile to the reported total.Master waste schedule, pivot tables or calculation sheets, reconciliation between the subset and the overall figure, and reviewer evidence that the roll-up was checked.
For the hazardous portion, I used the records that were flagged as hazardous in our system and confirmed the total before publication.An assurer will question whether the hazardous classification was applied consistently, whether all relevant records were included, and whether the total is supported by traceable evidence.Hazardous waste register, classification basis, contractor manifests, site records, and a control showing the hazardous total was reviewed against source documents.
I split the hazardous amount by the first recovery route using the treatment records from the receiving or handling party and checked that the line item was supported by those documents.An assurer will probe whether the treatment route was evidenced, whether the same load appears elsewhere, and whether the line item is correctly assigned to the stated route.Receiving-party certificates, contractor invoices or treatment statements, waste transfer documentation, and a reconciliation showing the line item is unique and supported.
I split the hazardous amount by the second recovery route using the treatment records from the receiving or handling party and checked that the line item was supported by those documents.An assurer will probe whether the treatment route was evidenced, whether the same load appears elsewhere, and whether the line item is correctly assigned to the stated route.Receiving-party certificates, contractor invoices or treatment statements, waste transfer documentation, and a reconciliation showing the line item is unique and supported.

Evidence pack to prepare

Common reporting gaps

Figures are stated without the supporting narrative, or narrative without figures.Scope is inconsistent between the text and the numbers.The reporting boundary is left undefined.Material changes since the previous period are not disclosed.Estimates and measured values are not distinguished.Source records for the figures are not identified.
Common gaps

Mistakes to avoid when collecting the data

Wrong owner asked
The request goes to a central sustainability contact instead of the waste contractor, site manager, or finance team that actually holds the source records.
Framework language used too early
People ask for the data using reporting labels rather than the organisation’s own waste categories, so the right records are not found.
Scope not pinned down
The team starts collecting figures before agreeing which sites, activities, and waste streams belong in the count, so the dataset is incomplete or over-broad.
Wrong period basis
Records are pulled for invoice dates or collection dates without checking that they match the reporting period used for the disclosure.
Mixed counting methods
Some entries are taken from weighed tickets, others from estimated volumes or supplier summaries, and they are added together as if they were the same basis.
Source labels stripped out
The original waste descriptions, treatment notes, or contractor codes are replaced with generic labels, making later tracing back to the source impossible.
Hazardous and non-hazardous merged
Separate waste populations are combined in one spreadsheet, so the split needed for later analysis and checking is lost.
Onsite and offsite not separated
Material handled at the organisation’s own premises is mixed with material treated elsewhere, which breaks the location breakdown needed for the data set.
Evidence details missing
The file contains numbers but not the supporting document name, date, version, or sender, so the figures cannot be verified later.
No approval trail
The draft totals move forward without a named reviewer or sign-off record, so nobody can show who checked the figures before they were used.

Where judgement is often needed

Boundary shifts after buying or selling sites
If the reporting perimeter changed during the year, state which sites or operations are included in the waste totals and explain how you handled any partial-year movement so the figures stay comparable.
Different local labels for recovery routes
Where country teams use different waste contractor labels or legal categories, map them to one internal set of recovery routes and disclose the mapping so readers can see how the roll-up was built.
Items close to the reporting perimeter
For waste streams from shared services, leased premises, contractors or other borderline activities, set out the rule used to decide whether they sit inside or outside the figures and apply it consistently.
Choosing the cut-off date for waste movements
If waste is counted when it leaves the site, when the contractor accepts it, or when treatment is confirmed, explain the timing basis chosen and keep it the same across the dataset.
Measured weights versus estimated weights
When weighbridge tickets are missing or mixed loads are split using estimates, disclose which lines are measured and which are modelled, plus the method used to derive the estimates.
Rounding and roll-up differences
If site-level numbers are rounded before consolidation, explain the rounding rule and check that the summed category lines still reconcile sensibly to the overall totals.
Protecting sensitive site-level detail
When a small number of facilities or waste handlers could make the data commercially or personally sensitive, aggregate the figures enough to protect privacy while still giving enough context to understand the pattern.
Mixed waste streams with more than one treatment route
If one load is split across several recovery routes or a contractor gives a blended treatment outcome, explain the allocation method and how you avoided double counting.
Examples

Illustrative examples

Synthetic, written by LRA — not from a company report, not text from any standard.

Illustrative (synthetic) example — food processing

Synthetic illustration only: we report the waste we kept out of disposal, split between hazardous and non-hazardous material and by how it was recovered. The figures below also show the hazardous share handled on our own sites, with each part adding up to the stated subtotal.

This example shows how to present diverted waste by material type and recovery route, including the on-site split for hazardous material. All figures are illustrative and internally consistent.

Illustrative breakdown of waste kept out of disposal, by material type and recovery route (tonnes)
Hazardous waste diverted from disposal120180100
Non-hazardous waste diverted from disposal300500200
Hazardous waste handled on-site204010
Illustrative (synthetic) example — construction materials

Synthetic illustration only: we set out the amount of waste diverted away from disposal, with separate totals for hazardous and non-hazardous streams and a further split by recovery route. For the hazardous stream, we also show the portion treated at our own facilities.

This example demonstrates a second plausible reporting pattern, using a different sector and different figures while keeping the same reporting logic. The on-site hazardous figures are a subset of the hazardous total.

Illustrative breakdown of waste kept out of disposal, by material type and recovery route (tonnes)
Hazardous waste diverted from disposal609050
Non-hazardous waste diverted from disposal240360100
Hazardous waste handled on-site15255
Company reports

How companies report GRI 306-4

Real reports where this topic is disclosed. These are report practice, not exact disclosure templates to copy.

Bangkok Dusit Medical Services Public Company Limited
Healthcare Providers, Services and Technology · Thailand · 2025
Open report →
Bangkok Dusit Medical Services Public Company Limited’s Sustainability Report 2025 provides several quantitative data points related to waste management, including hazardous waste recycling targets of 25% (p.235) and hazardous waste diversion rates exceeding 25% (p.274). The report also details non-hazardous waste diverted from disposal in tonnes, with values increasing to 3,815.37 tons (p.275). However, the report lacks specific weight data for hazardous waste and does not provide narrative explanations or detailed breakdowns of waste management practices beyond these figures.
Indra Sistemas, S.A.
Software and Services · Spain · 2025
Open report →
Indra Sistemas, S.A.’s Sustainability Report 2025 provides numeric data on waste generation, recycling, and disposal, including hazardous waste quantities reported on pages 77, 87, 88, 89, and 213. The report also covers emissions from the end-of-life treatment of sold products under scope 3 category 12 on page 257, describing the methodology and emission sources. However, several weight values for waste treatment and disposal are missing or unclear, and no detailed narrative on methodology beyond category 12 emissions is found.
Indorama Ventures Public Company Limited
Chemicals · Thailand · 2024
Open report →
Indorama Ventures Public Company Limited's Sustainability Report 2024 provides numeric data on waste management, including total generated waste of 427,079 tons in 2021 with a percentage recycled and reused noted on page 35, and hazardous waste recycled or reused amounts detailed on page 81. The report also specifies total hazardous waste diverted from disposal by recovery options such as reuse and recycling on page 81. However, the report lacks narrative explanations or methodology regarding waste management practices, and several specific weight values related to waste categories are not found or unclear in the report.
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Check your understanding

Scenarios to work through

A site sends 18.0 tonnes of scrap metal to a recycler and 7.5 tonnes of packaging to a reuse contractor. The same period also includes 2.0 tonnes of solvent waste sent offsite for treatment that is not final disposal.

QHow should you classify and total these amounts when preparing the waste-diversion note, and what extra detail should sit alongside the figures?
Reveal model answer →

A factory reused 1.2 tonnes of hazardous material on site, recycled 3.4 tonnes on site, and sent 0.8 tonnes offsite for another recovery route. It also reused 4.0 tonnes of non-hazardous material offsite and recycled 6.5 tonnes offsite.

QWhich split should you use so the report shows both the overall amount and the on-site/offsite detail without double counting?
Reveal model answer →

A warehouse has 5.0 tonnes of batteries sent to an external processor and 2.0 tonnes of contaminated absorbents treated in-house. The team is unsure whether the in-house treatment should be shown as a recovery route or left out because no third party was involved.

QShould the in-house amount be included, and if so, where does it belong in the breakdown?
Reveal model answer →

A business has 0.6 tonnes of hazardous waste sent for reuse, 1.4 tonnes recycled, and 0.5 tonnes sent for another recovery route. It also has 8.0 tonnes of non-hazardous waste sent for reuse, 9.0 tonnes recycled, and 2.0 tonnes sent for another recovery route.

QWhat check should you perform before sign-off to make sure the totals and sub-lines are internally consistent?
Reveal model answer →
Framework references

Related framework references

How this disclosure maps across the major reporting frameworks.

GRI
GRI 306-4
within GRI 306: Waste
Open official source →
Primary
Related & explore
FAQ

Questions this page answers

For GRI 306-4 Waste, what data points do I need to gather before I start drafting the disclosure?+
How should I set the scope and methodology for GRI 306-4 Waste using this page?+
Who should own the GRI 306-4 Waste data collection and sign-off process?+
What evidence should I keep to make a GRI 306-4 Waste disclosure assurance-ready?+
What are the most common mistakes or reporting gaps for GRI 306-4 Waste on this page?+
How do I use the Prep & Assurance workbook for GRI 306-4 Waste?+
What can I do with the printable Library Card for GRI 306-4 Waste?+
Does the page include an example of how a GRI 306-4 Waste disclosure might look?+
What draft output can I build from the GRI 306-4 Waste page?+
Can I reuse my GRI 306-4 Waste data for ESRS E5 Resource Use and Circular Economy?+
More questions this page can help with