A consumer goods supplier selling through three major retailers can be managing five separate sustainability streams: Walmart's Project Gigaton, Target's supplier expectations, Amazon's Climate Pledge alignment, plus third-party platforms such as Intertek Inlight and UL verification.
They all draw on the same data. Before treating each portal as its own project, establish what is shared.
| First question | Short answer |
|---|---|
| Are these separate projects? | No. Emissions, energy, water, waste, labor practice, and policies feed every portal. The formats differ. |
| What does every program need? | A Scope 1 and 2 emissions figure with a documented method, and a policy library. |
| Company-level or product-level? | Both appear. EcoVadis, Inlight, and Higg are company or facility level; UL claims validation and Amazon's product programs are product level. |
| Which third-party rating? | One recognized rating — EcoVadis or a verified Higg score — is accepted by most programs and more efficient than separate verification per retailer. |
| How do retailers use the data? | Tiering by score, Scope 3 aggregation, and deciding who gets an audit visit. |
Program descriptions reflect the retailers' published materials at the time of the guide's last revision; check each retailer's current supplier requirements.
The retail ESG landscape
Major retailers have moved beyond a signed code of conduct. They collect structured sustainability data through portals, require third-party verification from bodies such as Intertek and UL, and connect supplier performance to sourcing decisions.
The pressure comes from three directions: the retailers' own regulatory requirements (CSRD in Europe, climate disclosure law in California, supply chain due diligence laws in Germany and France); investor and NGO scrutiny of Scope 3, where supplier emissions sit; and consumer expectations that make sustainability a commercial differentiator on shelf. Supplier requirements are therefore more specific, more frequently updated, and more likely to involve verification than five years ago.
Walmart and Project Gigaton
Project Gigaton is Walmart's supplier program targeting one billion metric tons of greenhouse gas reductions across its value chain by 2030. Participation is voluntary; Walmart tracks supplier engagement and factors it into broader relationship assessment.
Suppliers register on the Walmart Sustainability Hub and select one or more pillars: energy, nature, waste, packaging, product use, transportation and logistics. Each pillar needs a specific, measurable goal and annual progress reporting. Data is self-reported; Walmart audits a subset and may request evidence.
Suppliers at meaningful spend thresholds also report Scope 1 and 2 emissions in Walmart's broader ESG questionnaire. A supplier with a calculated footprint populates both from the same dataset. Suppliers with no emissions data should start with what a customer needs from your carbon footprint before setting targets.
Target
Target's Responsible Sourcing program covers environmental, social, and governance expectations. The environmental component asks strategic suppliers for Scope 1 and 2 emissions, science-based targets, and progress on packaging and waste.
Target combines self-assessment questionnaires with factory audit data from third-party schemes (SMETA, BSCI, and similar). Suppliers to Target's owned brands face stricter requirements, including chemical safety standards and packaging specifications; expect to manage the ESG questionnaire and product-level data in parallel.
Amazon
Amazon's Climate Pledge commits to net-zero carbon by 2040. For Vendor Central (first-party) suppliers, Vendor Sustainability reporting requires emissions data, packaging data aligned with the Frustration-Free Packaging program, and increasingly product-level carbon footprint information feeding the Climate Pledge Friendly certification.
Climate Pledge Friendly is consumer-facing, and the supplier requirement behind it is third-party certification, not self-attestation. Qualifying certifications include EcoVadis Gold and above, Cradle to Cradle, and UL certifications — which is where UL's services become commercially relevant to consumer goods suppliers.
Intertek: Inlight and Total Quality Assurance
Intertek is one of the largest testing, inspection, and certification bodies. Two services matter for retail suppliers.
Intertek Inlight is a supply chain sustainability assessment platform. Suppliers complete an assessment; the platform generates a rating or scorecard; retail customers view results without re-auditing. It covers environmental management, social standards, health and safety, and business ethics, and works similarly to EcoVadis or Sedex.
The process: register, complete the self-assessment (typically 60–100 questions across the four pillars), upload supporting documents, submit. Intertek reviews submissions and may request a verification audit for higher-tier ratings. The scoring rewards documented policies, quantitative data with evidence, and third-party certification.
Total Quality Assurance (TQA) is Intertek's broader supply chain framework covering product quality, social compliance, and environmental management. For suppliers to retailers using TQA, factory inspection and ESG assessment are integrated rather than separate tracks.
Inlight is the ESG rating platform; TQA is the overarching program. A supplier may be enrolled in TQA for product inspection and separately complete an Inlight assessment.
UL sustainability verification
UL (formerly Underwriters Laboratories) has expanded into sustainability verification.
Environmental claims validation verifies product-level claims — recycled content percentage, recyclability, carbon neutrality claims. Third-party validation supports claims on packaging and reduces greenwashing exposure.
ECOLOGO and GREENGUARD certifications are recognized by Amazon's Climate Pledge Friendly program and others as qualifying credentials, covering product environmental performance across the life cycle.
Responsible Sourcing assessment covers social and environmental standards at manufacturing sites, an alternative to SMETA or BSCI where retailers accept it.
UL verification is typically product-level, complementing a company-level rating such as EcoVadis or Inlight. Suppliers with both are better positioned than those with one.
Higg Index for apparel and textiles
For apparel, footwear, and home textiles, the Higg Index — stewarded by Cascale, formerly the Sustainable Apparel Coalition — is the dominant standard. The Facility Environmental Module (FEM) measures environmental performance at manufacturing sites; the Facility Social and Labor Module (FSLM) covers social compliance.
Retailers including H&M, Patagonia, and Target use Higg data in supplier evaluation. The assessment is self-reported and scored; verified scores, where a third-party checks the submission, carry much more weight. Higg FEM data overlaps heavily with EcoVadis, CDP, and retailer questionnaires — energy, water, waste, chemicals, emissions — so a supplier with current Higg data has most other assessments partly answered. The Higg Index guide covers the modules.
How retailers use the data
Tiering by score. Suppliers ranked by sustainability score; those below a threshold are flagged for remediation or, at the extreme, delisted. A poor EcoVadis or Inlight rating has direct commercial consequences here.
Scope 3 aggregation. Retailers report their supply chain emissions from supplier data. Scope 3 Category 1 needs spend-weighted supplier emissions, which drives the push for product-level carbon footprints in some programs.
Verification decisions. Self-assessed scores determine who gets a third-party audit visit. Credible, documented scores often bypass annual audits; low or inconsistent scores get scheduled. A well-maintained self-assessment reduces audit frequency, which has real cost for a facility.
Practical steps
The common error is treating each portal as a separate compliance project. Fix the underlying structure and the portals become data entry.
1. Audit what exists. The last twelve months of utility bills, waste manifests, payroll summaries, and existing audit reports (SMETA, ISO 14001, BRCGS). Most of what any portal asks for.
2. Calculate Scope 1 and 2. Every major program needs it as a baseline. Energy data and standard factors; per facility, summed; documented once and reused. The free carbon calculator handles the factors from energy, fuel, and travel data.
3. Build a policy library. Environmental policy, health and safety policy, anti-bribery policy, supplier code of conduct. ESG policy documents for suppliers covers the minimum set. The same documents go into EcoVadis, Inlight, Sedex, and every retailer portal.
4. Choose one third-party credential. An EcoVadis rating or verified Higg score is accepted by most programs and more efficient than separate verification for each retailer. EcoVadis vs CDP vs Sedex compares scope, cost, and recognition.
5. Set an update calendar. A quarterly date to refresh core metrics, so a portal request is answered from the last update. Managing multiple ESG questionnaires covers keeping one dataset current across formats.
Official References
- Walmart Sustainability Hub
- Intertek
- UL Solutions
- Cascale — Higg Index tools
- Sedex SMETA audit information