A procurement guide to compostability standards, regional requirements and supplier documentation

For Canadian retailers, choosing compostable bags is no longer only about finding a product with a compostable logo.

Procurement teams need to understand how compostability claims are verified, how different provinces approach organic waste management, and what documentation may be requested during supplier approval.

A professional compostable bag supplier typically provides more than a product sample. Retail buyers should evaluate:

• Compostability certification
• Material documentation
• Manufacturing quality systems
• Supply chain traceability
• Responsible sourcing records

Because Canada does not operate under one single compostable packaging system, requirements may vary by province, municipality and end-use application.

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Understanding Compostable Bag Certifications in Canada

A common misunderstanding is that all certifications serve the same purpose.

In reality, certifications can be divided into three categories:

1. Compostability Certifications

These certifications demonstrate that a product has been evaluated against recognized compostability standards.

Common examples include:

BPI Certification

BPI certification is widely recognized in North America for commercially compostable products.

It supports verification of compostability claims for applicable commercial compostable products.

TÜV OK compost INDUSTRIAL

TÜV AUSTRIA OK compost INDUSTRIAL certification verifies suitability for industrial composting environments.

Acceptance in local organic waste programs should always be confirmed with the relevant municipality or composting facility.

This type of documentation is often reviewed when retailers or waste partners evaluate compostable packaging claims.

ASTM / EN 13432 Related Documentation

ASTM and EN 13432 related documentation may be provided depending on product construction and certification scope.

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Ontario: Focus on Composting System Compatibility

Ontario has one of the largest retail markets in Canada, but compostable bag approval is not only about certification.

• Retail buyers should consider:
  
  
  - Whether local organic waste programs accept compostable liners
  - Whether acceptance criteria differ between municipalities and organic waste processors
  - Whether the product matches municipal collection requirements
  - Whether disposal instructions are clear for consumers

A certified compostable bag may meet technical standards, but final acceptance can depend on local collection and processing systems.

For procurement teams, supplier documentation should include:

✓ Compostability certification
✓ Product specification sheets
✓ Material declarations
✓ Application guidance

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British Columbia: Certification and Local Processing Considerations

British Columbia places strong attention on waste diversion and organic waste management.

When reviewing compostable bags, buyers should consider:

• Industrial composting compatibility
• Local processing conditions
• Clear product claims

Certification provides important evidence, but retailers should also confirm whether products are suitable for their targeted waste management pathway.

A professional supplier should be able to provide:

• Certification scope
• Testing information
• Product construction details

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Quebec: Certification Documentation and French Compliance

Quebec has additional considerations for retailers due to bilingual packaging requirements and regional compliance expectations.

For private label and retail programs, Procurement teams often evaluate:

• Applicable English and French packaging information requirements
• Environmental claims
• Supporting certification documents

A supplier supporting Quebec retail programs should be prepared to provide bilingual packaging assistance and compliance documentation.

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Alberta and Other Canadian Provinces: Supplier Reliability Matters

Beyond compostability claims, many Canadian retailers evaluate the supplier's overall manufacturing capability.

Examples of supplier qualification documentation include:

Quality Management

ISO 9001

Demonstrates structured quality management processes and supports consistent production evaluation.

Packaging Manufacturing Control

BRCGS Packaging Materials

Supports supplier audits and packaging manufacturing system reviews.

Environmental Management

ISO 14001

Demonstrates environmental management system practices.

Occupational Health & Safety

ISO 45001

Supports evaluation of workplace safety management systems.

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Responsible Sourcing and Material Traceability

Large retailers increasingly evaluate not only the product, but also the supply chain behind it.

Additional documentation may include:

FSC Chain of Custody

Supports responsible paper sourcing documentation for applicable paper products.

FSC Chain of Custody relates to responsible sourcing of paper materials and is separate from compostability certification.

GRS Scope Certificate

Supports recycled material claims where applicable.

SMETA Audit Report

Provides social responsibility audit information for supplier evaluation.

amfori BSCI Monitoring

Supports responsible sourcing reviews.

These documents are not compostability certifications. Instead, they help procurement teams evaluate supplier transparency and responsible manufacturing practices.

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What Documents May Retail Buyers Request From Compostable Bag Suppliers?

Before approving a compostable bag supplier, procurement teams should request:

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Certification Is Only One Part of Supplier Qualification

A compostable bag supplier should not only provide certification documents.

Retail procurement teams need confidence in:

• Product compliance
• Manufacturing consistency
• Documentation accuracy
• Long-term supply reliability

The right supplier partnership helps retailers improve documentation readiness and support packaging program decisions.

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Guarden Documentation Support

Guarden supports retail and private label procurement teams with:

• Compostability documentation review and support
• Product specification review
• Quality system documentation
• Material traceability documents
• Responsible sourcing records
• Private label packaging development support

For Canadian retailers evaluating compostable bag programs, understanding certification requirements is the first step toward building a reliable supply chain.

Important Note

Certification requirements, labeling expectations and acceptance criteria may vary by province, municipality and waste processing facility. Retailers should verify applicable requirements before making compostability claims or disposal instructions.