EPS transport packaging gains recognition for recyclability

The US Plastics Pact (USPP) has removed expanded polystyrene (EPS) transport packaging from its Problematic and Unnecessary Materials List, following evidence that the material has reached a recycling rate of approximately 30% or higher.

The decision marks a significant shift in the assessment of EPS transport packaging in the United States. While expanded polystyrene remains controversial in many applications, the USPP concluded that transport packaging has developed sufficiently strong collection and recycling systems to demonstrate circularity potential.

Transport packaging follows a different recycling pathway

According to the USPP, EPS transport packaging differs significantly from other EPS products, particularly foodservice packaging. A substantial proportion of transport packaging remains within commercial distribution networks or accompanies products delivered directly to consumers.

This creates opportunities for collection and aggregation outside traditional municipal curbside recycling systems. Commercial collection channels can therefore make it easier to gather larger quantities of EPS and send the material to specialised recycling facilities.

The distinction is important because the decision applies specifically to EPS transport packaging and does not remove EPS or polystyrene more broadly from the problematic materials framework.

Infrastructure and collection remain critical

The USPP points to the development of dedicated recycling infrastructure as one of the factors behind the improvement in EPS transport packaging recycling. However, the material presents particular logistical challenges because its low density makes transportation relatively inefficient.

One potential solution is densification, which reduces the volume of collected EPS before transportation and processing. Improving the economics of collection can help recyclers handle larger quantities of material while making recycling systems more commercially viable.

The development of strong end markets for recycled EPS is also essential. Greater use of post-consumer recycled material can create additional demand and provide economic incentives for collection and recycling.

EPS remains under pressure in other applications

The decision does not signal a broader reversal of restrictions on expanded polystyrene. EPS and other forms of polystyrene remain under pressure in foodservice applications because of concerns surrounding plastic pollution and the environmental impacts associated with difficult-to-recycle products.

Several jurisdictions are introducing or expanding restrictions on plastic foam products. This creates an increasingly differentiated regulatory landscape in which the same polymer can face very different treatment depending on its application and the effectiveness of the recycling system supporting it.

Data can change how packaging materials are assessed

The USPP describes its decision as an example of how its Problematic and Unnecessary Materials process is intended to operate. The list provides a framework for identifying packaging formats that present significant challenges, while allowing materials to be reassessed when collection systems, recycling infrastructure and market conditions improve.

Consistent measurement of recycling rates is therefore becoming increasingly important. Reliable data can demonstrate whether investments in collection infrastructure and recycling technologies are producing measurable improvements in material circularity.

A potential model for other packaging materials

The progress made with EPS transport packaging could provide lessons for other materials traditionally considered difficult to recycle. The USPP argues that targeted interventions involving suppliers, packaging users and recyclers can improve collection rates and create viable recycling markets.

For the packaging industry, the decision reinforces the importance of evaluating materials according to their actual use and waste-management systems rather than treating entire polymer categories as inherently problematic. At the same time, the contrasting treatment of transport and foodservice EPS demonstrates that recyclability ultimately depends on infrastructure, collection and market demand.

As the USPP continues reviewing its Problematic and Unnecessary Materials List, further changes could follow. The reassessment of EPS transport packaging suggests that improvements in recycling systems and stronger evidence could influence how other packaging formats are evaluated in the future.