Walmart Joins U.S. Cotton Trust Protocol for Sustainable Sourcing

Major US retailer commits to verified sustainable cotton supply chains

Walmart has joined the U.S. Cotton Trust Protocol and partnered with Regenagri to strengthen its sustainable cotton sourcing. The retailer serves 270 million customers weekly across more than 10,750 stores and operates e-commerce platforms in 19 countries. These partnerships centre on regenerative agriculture and data-verified traceability throughout textile supply chains.

The commitments build on existing targets. Walmart aims to sustainably manage, protect, or restore 50 million acres of land and 1 million square miles of ocean by 2030. In fiscal year 2025, suppliers reported 548,000 acres of more sustainably managed cotton. Walmart U.S. private brand apparel and home textiles reached 89.8% sustainable sourcing, whilst Sam’s Club U.S. achieved 80.7% and Walmart Canada reached 88.1%.

The moves follow similar partnerships with PepsiCo, General Mills, and The Nature Conservancy on sustainable practices for corn, soy, wheat, and feed crops. However, this represents the first time the retailer has committed to science-based verification systems specifically for cotton sourcing at this scale.

Two programmes provide different verification approaches

The U.S. Cotton Trust Protocol launched in 2020 as a voluntary programme. It provides traceability and quantifiable metrics across six sustainability areas: land use, soil health, water management, greenhouse gas emissions, energy use, and fiber quality. Data gets collected at field level, then aggregated and verified by independent third parties. This allows brands to track U.S. cotton through their supply chains.

Regenagri offers a global certification for regenerative agriculture with full traceability for certified regenerative cotton and other products. The organization announced Walmart as its largest global retail partner on 16 April 2026. Walmart is the first food and apparel retailer to license the Regenagri programme, which will expand certified products worldwide through the retailer’s channels.

Meanwhile, the U.S. Cotton Trust Protocol announced Walmart’s membership on 14 April 2026. Membership grants access to aggregated data on grower sustainability practices. The Protocol stated that Walmart now has critical assurances for sustainable cotton through sophisticated data and transparency systems.

Cotton farming presents significant environmental challenges

Cotton production traditionally requires substantial water resources and pesticide applications. Conventional farming methods can deplete soil health over time and contribute to greenhouse gas emissions. Therefore, shifting to regenerative practices addresses multiple environmental concerns simultaneously.

Regenerative agriculture focuses on improving soil health through practices like cover cropping, reduced tillage, and crop rotation. These methods can increase water retention, reduce chemical inputs, and sequester carbon in soil. For retailers sourcing cotton at scale, verifying these practices across thousands of suppliers presents a major logistical challenge.

The Trust Protocol’s field-level data collection attempts to solve this verification problem. Growers submit metrics that get independently verified before aggregation. This creates a traceable record from farm to finished product. Consequently, brands can make sourcing claims backed by third-party data rather than supplier self-reporting alone.

Regenagri adds another layer by certifying that regenerative practices meet specific standards. The certification covers full traceability, ensuring products genuinely contain certified cotton throughout the supply chain. This matters because blended or mixed cotton batches can dilute sustainability claims without robust tracking systems.

UK textile businesses face parallel pressures on sourcing

British companies sourcing cotton textiles encounter growing expectations around supply chain transparency. Public sector procurement increasingly requires evidence of sustainable sourcing practices. Additionally, larger corporate clients often mandate sustainability standards in tender specifications.

The Environment Act 2021 strengthens requirements for environmental reporting. Although it primarily targets large companies, supply chain pressures flow down to smaller suppliers. Furthermore, proposed due diligence regulations may soon require UK businesses to verify that supply chains meet environmental and social standards.

Retail buyers and corporate procurement teams now regularly request third-party verification of sustainability claims. Self-reported data no longer satisfies many tender requirements. Instead, buyers want independent certification or membership in recognized standards programmes.

For UK businesses supplying textiles to large retailers or public sector clients, understanding international cotton standards becomes important. Many UK companies do not grow cotton domestically but source finished textiles from international suppliers. Therefore, verifying the sustainability credentials of those suppliers presents a practical challenge.

The Walmart announcements matter because they signal where major retail procurement is heading. When the world’s largest retailer adopts specific verification systems, other businesses in the supply chain face pressure to meet the same standards. Moreover, UK suppliers to international brands may need to demonstrate compliance with programmes like the U.S. Cotton Trust Protocol or Regenagri certification.

Verification systems create new compliance requirements

Membership in the U.S. Cotton Trust Protocol requires growers to collect and submit field-level sustainability data. The programme measures metrics across six categories. Growers must track land use efficiency, soil carbon levels, water consumption, greenhouse gas emissions, energy inputs, and fiber quality indicators.

Independent third parties verify submitted data before it gets aggregated into supply chain reports. This verification process adds cost and administrative burden for growers. However, it provides brands with defensible sustainability claims that can withstand scrutiny from regulators, investors, or campaign groups.

Regenagri certification involves on-site audits and ongoing monitoring. Farms must demonstrate adherence to regenerative practices across their operations. The certification covers not just environmental metrics but also social standards and economic viability. Consequently, achieving certification requires investment in both practices and documentation systems.

For textile manufacturers and retailers, these programmes shift risk management. Previously, sustainability claims relied heavily on supplier assurances. Now, brands can access verified data and certified products. This reduces reputational risk but increases costs and complexity in supplier selection and management.

UK businesses sourcing cotton products need to consider whether their current suppliers can meet these emerging standards. Some suppliers may already participate in verification programmes. Others may need support to implement required practices and reporting systems. In some cases, businesses may need to find alternative suppliers who meet certification requirements.

Important details about the Walmart commitments

• Walmart joined the U.S. Cotton Trust Protocol on 14 April 2026, gaining access to field-level sustainability data verified by independent third parties across six environmental metrics.
• The retailer partnered with Regenagri as its largest global retail partner and first food and apparel retailer to license the certification programme, announced on 16 April 2026.
• In fiscal year 2025, suppliers reported 548,000 acres of more sustainably managed cotton, with Walmart U.S. private brand apparel reaching 89.8% sustainable sourcing based on supplier reports.
• Walmart aims to sustainably manage, protect, or restore 50 million acres of land and 1 million square miles of ocean by 2030 through various agricultural partnerships.
• The U.S. Cotton Trust Protocol collects data at field level, aggregates it, and provides supply chain traceability for U.S. cotton through independent verification.
• Regenagri certification focuses on full traceability for regenerative agriculture products, ensuring certified cotton can be tracked through the entire supply chain.

How UK businesses should approach cotton sourcing changes

Businesses supplying textiles to major retailers should review current cotton sourcing practices. Start by identifying which suppliers provide cotton-based products and what sustainability documentation they currently offer. Many suppliers may not yet participate in recognized verification programmes.

Next, assess whether customer requirements or tender specifications mention specific cotton standards. Public sector contracts increasingly reference sustainable sourcing requirements. Similarly, corporate procurement teams may specify programmes like the U.S. Cotton Trust Protocol or equivalent certifications. Understanding these requirements helps prioritize which suppliers need to improve documentation.

Consider engaging with suppliers about their capacity to meet verification standards. Some suppliers may already be working toward certification but have not communicated this to customers. Others may need technical support or financial assistance to implement required practices and reporting systems. Building these conversations into supplier relationships can prevent future compliance gaps.

For businesses with carbon reporting obligations under PPN 06/21 or similar requirements, sustainable cotton sourcing connects to Scope 3 emissions. Cotton cultivation, processing, and transportation contribute to supply chain emissions. Therefore, verified sustainable sourcing can support emissions reduction targets and reporting accuracy.

UK businesses should also monitor developments in due diligence legislation. The government has consulted on mandatory supply chain due diligence requirements that could extend to textile sourcing. Implementing verified sustainable sourcing now may ease future compliance burdens if regulations tighten.

Training procurement teams on sustainable cotton standards helps ensure consistent supplier evaluation. Understanding the differences between various certification programmes allows better decision-making when selecting suppliers or negotiating contracts. The SBS Academy offers training on sustainable procurement and supply chain management for UK businesses.

Finally, consider how sustainable sourcing connects to broader business sustainability goals. Many UK businesses commit to net-zero targets or environmental improvement plans. Textile sourcing often represents a significant portion of supply chain impacts. Therefore, addressing cotton sourcing strategically can contribute meaningfully to overall sustainability performance.

Where to find further information on cotton standards

The U.S. Cotton Trust Protocol website provides detailed information on membership requirements, data collection methods, and verification processes. It includes case studies from participating brands and growers.

Regenagri publishes certification standards and audit criteria on their official website. The Department for Environment, Food and Rural Affairs offers guidance on sustainable procurement and supply chain due diligence relevant to UK businesses.

The Environment Act 2021 sets out environmental reporting requirements that may affect businesses with significant supply chain operations. For information on public sector procurement sustainability requirements, consult the government’s Procurement Policy Notes, particularly PPN 06/21 on carbon reduction plans.

Businesses seeking support with sustainable procurement implementation can access practical guidance on evaluating suppliers, managing compliance requirements, and integrating sustainability into sourcing decisions.