--- title: The importance of the contamination control strategy (CCS) in relation to Annex 1 description: The CCS concept permeates the entire Annex 1 document and is a fundamental principle. It indicates examples and topics that need to be addressed. image: https://blog.pqegroup.com/hubfs/Contamination%20Control%20Strategy_Techniconsult_SIte%20Banner.jpg --- [![Logo PQE Group - azzurro - 2024](https://blog.pqegroup.com/hs-fs/hubfs/Logo%20PQE%20Group%20-%20azzurro%20-%202024.png?width=2000&height=721&name=Logo%20PQE%20Group%20-%20azzurro%20-%202024.png "Logo PQE Group - azzurro - 2024")](https://www2.pqegroup.com) - [Home](https://www2.pqegroup.com/) - [Industry](https://www2.pqegroup.com/industry/) - [Pharma & API](https://www2.pqegroup.com/pharma-api/) - [Medical Device](https://www2.pqegroup.com/medical-device/) - [Biotech](https://www2.pqegroup.com/biotech/) - [Startup](https://www2.pqegroup.com/startup/) - [Veterinary](https://www2.pqegroup.com/veterinary/) - [Services](https://www2.pqegroup.com/services/) - [Data Integrity](https://www2.pqegroup.com/data-integrity/) - [Digital Governance](https://www2.pqegroup.com/digital-governance/) - [Engineering](https://www2.pqegroup.com/engineering/) - [Commissioning, Qualification and Validation (CQV)](https://www2.pqegroup.com/commissioning-qualification-validation/) - [Quality Compliance](https://www2.pqegroup.com/quality-compliance/) - [Laboratory Excellence](https://www2.pqegroup.com/laboratory-excellence/) - [Regulatory Affairs](https://www2.pqegroup.com/regulatory-affairs/) - [Audits](https://www2.pqegroup.com/audits/) - [Training](https://www2.pqegroup.com/training/) - [Clinical Research](https://www2.pqegroup.com/clinical-research-services/) - [Pharmacovigilance](https://www2.pqegroup.com/pharmacovigilance/) - About - [About Us](https://www2.pqegroup.com/about/) - [ESG](https://www2.pqegroup.com/about/csr/) - [Women in STEM](https://www2.pqegroup.com/about/women-in-stem/) - Resources - [News & Press](https://www2.pqegroup.com/news/) - [Webinars](https://www2.pqegroup.com/webinars/) - [Blog](https://blog.pqegroup.com/) - [Careers](https://www2.pqegroup.com/careers/) - [Contact Us](https://www2.pqegroup.com/contact-us/) ![](https://blog.pqegroup.com/hubfs/blank-user.png) Techniconsult by Techniconsult # **The importance of the contamination control strategy (CCS) in relation to Annex 1** [Engineering](https://blog.pqegroup.com/tag/engineering) The concept of CCS – Contamination Control Strategy is defined in the Annex 1 glossary (not present in the previous version) as:  *A planned set of controls for microorganisms, endotoxins/pyrogens, and particles, derived from the current understanding of the product and the process, ensuring both process performance and product quality. The controls may include parameters and attributes related to the active substance, excipients, materials and components of the pharmaceutical product, operational conditions of the plant and equipment, in-process controls, finished product specifications, and related methods and frequencies of monitoring and control.* It can be a single document (quite extensive) or a collection of documents, procedures, assessments, rationales, and/or references to them; we could call it a **CCS** **dossier**. Therefore, it is a strategy that needs to be implemented throughout the production structure to define all critical control points and evaluate the effectiveness of the implemented controls and monitoring measures used to manage risks to the quality and safety of medicines. The implemented (or to be implemented) controls will depend not only on design (Quality by Design) but also on procedural steps, technical solutions, and organizational aspects... 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