With the rollout of California’s SB 54, the Plastic Pollution Prevention and Packaging Producer Responsibility Act, we’ve been receiving more questions about it than ever before. One question that came up and caught our attention is whether PET and PP food packaging materials are considered recyclable in California. It’s a fair question, especially given how often recyclability is misunderstood or oversimplified.
The short answer is yes. #1 PET, and #5 PP rigid food packaging are considered recyclable in California. However, under SB 54, this determination is not based on general assumptions or past recycling practices. Instead, it follows a structured and standardized research & study authorized by the state.
At the center of this framework is the Covered Material Category (CMC) List and Materials Characterization Study, published by CalRecycle. The CMC list plays a critical role in SB 54 by defining whether specific materials qualify as recyclable or compostable in California, based on the Materials Characterization Study. The study evaluates materials using real-world factors such as public access to recycling programs, MRF sorting capabilities, and the availability of responsible end markets. According to the most recent study and CMC list released in January 2026, both PET and PP rigid containers and lids are classified as recyclable. This means they meet the criteria established by the state to be recognized as recyclable materials.
This is important because SB 54 represents a significant shift in how recyclability is defined. In the past, a material might have been labeled recyclable simply because it was technically capable of being processed. Today, California’s approach is more specific and data-driven. It not only defines recyclability but also ties it to broader environmental goals. By 2032, the state aims for all packaging to be either recyclable or compostable, while also achieving a 65 percent recycling rate for single-use plastics.
Another important factor to keep in mind is that the CMC list is updated annually to facilitate with above goals set up by SB54. As recycling systems evolve and new data becomes available, material categories may be refined. This ensures that the definition of recyclability in California remains aligned with actual material performance while continuing to push the industry forward.
Ultimately, PET and PP food packaging materials are recognized as recyclable in California based on the state’s official criteria. While real-world recycling rates differ today, especially between PET and PP, SB 54 is designed to close that gap and create a more effective and accountable recycling system. As regulations continue to evolve, a clear understanding of recyclability helps guide better packaging decisions and reduce confusion in an increasingly complex situation.