C Label

C-Label

The C-Label is an international compostability certification mark that verifies whether a product or its packaging can safely and completely break down in industrial or home composting environments. Unlike conventional fertilizers, compost gradually nourishes the soil and supports the entire ecosystem, including worms, microorganisms, and other organisms essential for plant growth. Correctly managed composting practices not only benefit agriculture but also reduce landfill dependence and mitigate climate change impacts.

The C-Label certification ensures that products comply with recognized standards such as ASTM D6400 (for compostable plastics and films) and ASTM D6868 (for paper and board coated with compostable plastics). Certified manufacturers can display the C-Label mark on their products, providing consumers with confidence that the items will decompose into carbon dioxide, water, and inorganic compounds without leaving harmful residues.

Through independent laboratory testing, C-Label validates that products biodegrade rapidly, safely, and completely under controlled composting conditions. This makes C-Label a critical tool for companies aiming to prove their environmental responsibility, enhance product credibility, and contribute to a circular economy.

Industry Applications

The C-Label Compostability Certification is applicable across a wide range of industries where sustainable packaging and products are increasingly demanded:

  • Food & Beverage Packaging: Compostable cups, plates, straws, bags, and wraps that meet ASTM compostability requirements.
  • Retail & Consumer Goods: Certified compostable shopping bags, cutlery, and household items designed for safe disposal.
  • Agriculture & Horticulture: Compostable plant pots, mulch films, and seedling trays that decompose naturally in soil.
  • Textiles & Natural Fibers: Compostable fabrics and blends made from cotton, wool, or biodegradable fibers.
  • Municipal Waste Management: Supporting cities and facilities that need standardized, verifiable compostable waste streams.

Across these industries, C-Label provides a standardized benchmark for verifying compostability, helping businesses meet consumer expectations and regulatory requirements while contributing to global sustainability goals.

Why Choose the C-Label?

Obtaining the C-Label offers multiple advantages for both businesses and consumers:

  • Scientific Assurance: Certification is based on ASTM D6400/D6868 specifications developed by leading scientists and composting experts.
  • Consumer Trust: The label communicates transparency and reliability, helping consumers make eco-conscious purchasing decisions.
  • Waste Reduction: Certified products safely divert organic waste from landfills and reduce methane emissions.
  • Soil Health: Compostable products return nutrients to the soil, supporting agriculture and ecosystem regeneration.
  • Compliance & Market Access: Many regions and municipalities require proof of compostability for waste management programs.
  • Competitive Advantage: Brands with C-Label certification stand out in sustainable markets and gain recognition among eco-conscious buyers.

By choosing the C-Label, manufacturers not only demonstrate environmental responsibility but also secure long-term business advantages in an increasingly sustainability-driven market.

Frequently Asked Questions

What standards does C-Label certification follow?
C-Label uses ASTM D6400 for compostable plastics and ASTM D6868 for compostable packaging materials. These standards ensure products break down completely in composting environments without leaving harmful residues.
How are products tested for C-Label?
Products undergo laboratory testing in accredited facilities where biodegradation, disintegration, and eco-toxicity are evaluated. Only those that meet all criteria are awarded certification.
Is C-Label certification limited to packaging?
No. While widely used in food packaging, C-Label applies to textiles, agricultural products, consumer goods, and any item designed for compostability.
What are the environmental benefits of C-Label products?
Certified products reduce landfill waste, lower greenhouse gas emissions, decrease the need for chemical fertilizers, and improve soil quality by returning nutrients to the earth.
How does certification benefit companies?
Companies gain credibility, access eco-conscious markets, and align with international sustainability regulations and consumer demands.
Are C-Label products compostable at home?
Some products are suitable for home composting, while others require industrial facilities. Certification documents clarify whether the product is “home compostable” or “industrially compostable.”

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