The SCP Foundation categorizes its anomalies using a standardized system of containment classes, a critical framework that dictates the resources and procedures required to secure, contain, and protect each entity. This classification is not merely a label but a dynamic assessment of the risk an object, organism, or phenomenon poses to personnel and global stability, considering factors such as danger level, ease of containment, and required resources. Understanding these designations is essential for anyone seeking to comprehend the operational scale of the Foundation, moving from simple logistical challenges to scenarios demanding apocalyptic-level intervention.
Standard Containment Classes
The primary containment classes form the backbone of the Foundation’s logistical planning, defining the baseline procedures for interaction and storage. These classes are generally applied based on the ease with which an anomaly can be secured and the potential harm it presents under controlled conditions.
Safe Class
Anomalies designated as Safe are the most straightforward to handle, provided the prescribed procedures are followed exactly. These objects or entities are fully understood, easily contained, and pose minimal risk to personnel when their protocols are maintained. Examples include items that require simple physical restraints, standard security measures, or consistent environmental conditions to remain inert. While classified as Safe, complacency is strictly forbidden, as unexpected variables can quickly elevate the risk posed by any contained anomaly.
Euclid Class
Euclid-class anomalies represent the most common category and are considered unpredictable or insufficiently understood. These entities require significant security measures due to their potential for unpredictability, difficulty in containment, or unknown effects. Unlike Safe-class objects, Euclid anomalies may breach containment with relative ease or exhibit behaviors that are not yet fully cataloged. Personnel assigned to these items operate under heightened alert, utilizing reinforced containment and rigorous observation protocols to mitigate the inherent risks.
Keter Class
Keter-class anomalies are those which are extremely difficult to contain, posing a severe threat to global security should they escape. These entities often resist current containment methods, require extensive resources, or possess capabilities that render standard procedures ineffective. Containing a Keter anomaly is a monumental task, often involving remote or hazardous locations and specialized teams. The classification serves as a stark reminder of the limits of current Foundation capabilities and the extraordinary measures required to manage these threats.
Special Containment Considerations
Beyond the standard hierarchy, the Foundation employs a secondary layer of classifications to address specific logistical and ethical challenges that do not fit neatly into the Safe-Euclid-Keter spectrum.
Neutralized Class
The Neutralized designation is applied to anomalies that have been successfully destroyed, rendered harmless, or are no longer considered a threat. This classification indicates that the object or entity no longer requires active containment procedures, though research into its properties may continue for archival and educational purposes. The status is permanent and reflects a successful conclusion to the containment effort, distinguishing it from dormant or actively managed anomalies.
Thaumiel Class
Reserved for the rarest and most critical anomalies, Thaumiel-class objects are those used by the Foundation to contain other anomalies. These entities or items function as tools, shields, or countermeasures against greater threats, effectively serving as a strategic layer of defense. Due to their indispensable role in maintaining global security, Thaumiel-class anomalies are subject to the highest levels of secrecy and protection, often known to only a handful of O5 Command members.
Other special classifications exist to handle unique scenarios, such as Explained anomalies which lose their anomalous properties upon investigation, or Grouped classifications used to denote linked phenomena like entire locations or populations. The containment class system is a living document, evolving as the Foundation encounters new threats and develops better methods of control, ensuring that the world remains shielded from the dangers lurking within its own reality.
