The OCS mission is simple: create a world where plastic resin is responsibly handled and kept out of the environment. OCS members are leading by example and turning commitment into action to work towards a future of zero resin loss.
Strategic Objectives
Strengthen Program Rigor and Transparency
Strengthen Program Rigor and Transparency
The OCS program strives to continually evolve and improve via greater transparency through external inspections, data reporting, and international program alignment.
Create and Share Knowledge
Create and Share Knowledge
OCS creates an environment to aggregate pre-competitive industry knowledge on how to prevent spills, recover, and properly dispose of plastic resin, as well as provide a venue to share innovative solutions to resin loss challenges through both formal and informal knowledge sharing.
Improve Recognition and Communication
Improve Recognition and Communication
Increase recognition of OCS as the premier industry-program advancing resin loss prevention to both raise awareness among stakeholders and policymakers, as well as achieve full participation across the plastics industry.
Expand Scope & Participation
Expand Scope & Participation
Expand the breadth of OCS to ensure participation within each supply chain segment and coverage across countries and regions where plastic resin is handled.


Our Core Values
OCS’s priority is helping industry work towards zero resin loss by creating sustainable, measurable frameworks and connecting the community with the knowledge and practices to make it happen.
- Preventing resin loss in operations is essential to protect the environment and preserve water quality.
- Peer learning, pre-competitive collaboration, and innovation will accelerate progress towards zero resin loss.
- A science-based approach is necessary to create targeted interventions to prevent resin loss.
- Lead with a consensus-based and participatory process.
- Operate with transparency and be responsible stewards of industry resources.
Who is OCS for?
OCS membership is open to any company that handles pre-production plastic resin. We can help you find the right membership category for your company.

See Impact In Action
Explore the latest Global Impact Report to see how OCS members around the world are advancing towards the goal of zero resin loss.
How We Enhance Industry Collaboration
Pre-Competitive Collaboration
Pre-Competitive Collaboration
OCS gives members a space to convene, share learnings, and solve challenges together – all working in unison toward zero resin loss. By aligning on this shared goal, companies can go further and make an impact faster to preserve water quality, protect the environment, and strengthen worker safety.

OCS CON & Other Events
OCS CON & Other Events
Our annual conference, OCS CON, along with ongoing member webinars and forums, provides opportunities to connect, learn, and innovate together. These events foster peer-to-peer exchange and help members stay current on the latest strategies and tools in resin loss prevention.
View Upcoming Events
Bringing Together the Whole Value Chain
Bringing Together the Whole Value Chain
From material suppliers to processors, logistics providers to recyclers, OCS connects every link in the plastics value chain. Members benefit from cross-sector dialogue that improves transparency, consistency, and shared strategies that prevent resin loss across operations.

Partnering With Organizations Globally
Partnering With Organizations Globally
OCS extends its reach through partnerships with aligned organizations across the globe. This international network helps spread effective strategies while making OCS adaptable to local contexts, enabling impact at scale.
Learn More About International Programs
Membership Categories
No matter what stage your company is at in its resin loss prevention journey, OCS offers a pathway forward. Every membership category is backed by practical tools and aligned with the shared goal: zero resin loss. Explore the category that fits your company’s role and readiness.

OCS Blue
For material suppliers and processors ready to advance beyond basic implementation. Designed for companies that want to demonstrate verified progress and take a leadership role in advancing zero resin loss across the industry.

OCS Logistics
For logistics providers across the plastics supply chain. Designed for companies that want to demonstrate verified practices, show customer commitment, and lead efforts to prevent resin loss in logistics operations.

OCS Base Tier
The foundational category for material suppliers and processors looking to get started with practical strategies for resin loss prevention.
PLASTICS & ACC’s Plastic Division
OCS was established by Plastics Industry Association (PLASTICS) in 1991 and has been jointly administered by PLASTICS and American Chemistry Council’s (ACC) Plastics Division since 2004.



International Programs
For companies with operations outside the U.S., International OCS Programs offer membership in more than 60 countries across six continents.
Ready to Take Action?
Contact the OCS Team
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