SCPs/Classes

Almost all SCP files use some sort of classification system to categorize SCP objects. The exact details of how these classes are assigned can vary greatly depending on the article, but they pertain mostly to how the Foundation contains the SCP and the complications that are involved in the process.
Traditionally, SCPs are assigned one of multiple different Object Classes (sometimes called Containment Classes), which usually describe the difficulty level of keeping the anomaly contained. Most SCP articles, especially before the Anomaly Classification System (ACS) was created, only assign a single Object Class for each anomaly. Post-ACS, most newer articles use either one or two Containment Classes: Primary and/or Secondary (also called Esoteric), plus a few additional categories.
==Primary Classes==
===Common Classes===
These are the three classic Object Classes, which are most commonly found in the vast majority of SCP articles.
Class 	Description
Safe 	Safe-class SCPs are anomalies that are easily and safely contained. This is often due to the fact that the Foundation has researched the SCP well enough that containment does not require significant resources or that the anomalies require a specific and conscious activation or trigger. Classifying an SCP as Safe, however, does not mean that handling or activating it does not pose a threat.
Euclid	Euclid-class SCPs are anomalies that require more resources to contain completely or where containment isn't always reliable. Usually this is because the SCP is insufficiently understood or inherently unpredictable. Euclid is the Object Class with the greatest scope, and it's usually a safe bet that an SCP will be this class if it doesn't easily fall into any of the other standard Object Classes. As a note, any SCP that's autonomous, sentient and/or sapient is generally classified as Euclid, due to the inherent unpredictability of an object that can act or think on its own.
Keter 	Keter-class SCPs are anomalies that are exceedingly difficult to contain consistently or reliably, with containment procedures often being extensive and complex. The Foundation often can't contain these SCPs well due to not having a solid understanding of the anomaly, or lacking the technology to properly contain or counter it. A Keter SCP does not mean the SCP is dangerous, just that it is simply very difficult or costly to contain.
===Other Object Classes===
Class 	Description
Neutralized	Neutralized SCPs are anomalies that are no longer anomalous, either through having been intentionally or accidentally destroyed, or disabled.
Thaumiel 	Thaumiel-class SCPs are anomalies that the Foundation specifically uses to contain other SCPs. Even the mere existence of Thaumiel-class objects is classified at the highest levels of the Foundation and their locations, functions, and current status are known to few Foundation personnel outside of the O5 Council.
Apollyon 	Apollyon-class SCPs are anomalies that cannot be contained, are expected to breach containment imminently, or some other similar scenario. Such anomalies are usually associated with world-ending threats or a K-Class Scenario of some kind and require a massive effort from the Foundation to deal with.
Archon 	Archon-class SCPs are anomalies that could theoretically be contained but are best left uncontained for some reason. Archon SCPs may be a part of consensus reality that is difficult to fully contain or may have adverse effects if put into containment. These SCPs are not uncontainable—the defining feature of the class is that the Foundation chooses to not put the anomaly into containment.
==Secondary/Esoteric Classes==
The following Object Classes are sub-classes that supplement the object's primary (or former) classification. An Esoteric object is an SCP that doesn't fall into the previous categories.
===Established Esoteric Classes===
===Subclasses===
;Suffix System
;Type System
;Object/Containment System
;Additional Systems
===System Classes===
===Informal Esoteric Classes===
===Foreign Esoteric Classes===
==Anomaly Classification System==
ACS is a new template for classifying SCPs, which adds other categories to supplement the Object Classes (both Primary and Secondary).
Recreation of the ACS system made in wikitext by CAL.
=== Clearance Levels===
Clearance Level 	Description
Level 1(Unrestricted) 	This document is available to all Foundation employees. If someone gets a regular paycheck from The Foundation, they can see this document.
Level 2(Restricted) 	This document is available to the majority of employees upon request. If the employee has a subordinate, then they are already granted Level 2 access. If an employee does not have any subordinates, then they must request access to the document from their supervisor.
Level 3(Confidential) 	This document is available to the minority of employees. The primary administrative staff of a Site will have Level 3 access. If an employee has a subordinate but does not have Level 3 access, they must request access to the document from their site administrative staff. If an employee does not have a subordinate, they must request access from their supervisor who will then request access from the site administrative staff.
Level 4(Secret) 	This document is ONLY available to site and Foundation administrative staff. Access to employees without Level 4 access will, generally, be declined and only approved for very specific purposes.
Level 5(Top Secret) 	This document is ONLY available to the highest Foundation administrative staff, such as the Ethics Committee or the O5 Council. Anyone without Level 5 access will always be denied.
Level 6(Cosmic Top Secret)	This document is ONLY available to a member of the O5 Council. All access to this document is granted solely at the discretion of an O5 Council member.
===Disruption Classes===
Disruption Class	Description
Dark 	The known or potential disruption is so low as to not be a concern. The object is essentially inert when not interacted with and may potentially only affect a single individual. The Foundation would find it trivial to clean up after it.
Vlam 	The known or potential disruption would be localized to a small handful of people. The anomalous effects certainly do affect multiple people, but it would not extend very far. The Foundation would find it relatively simple to neutralize its effects.
Keneq 	The known or potential disruption would be extended to a number of people roughly defined as a city. The anomalous effects could spread with fairly significant speed, fast enough as to cause concern. The Foundation would find it moderately difficult to neutralize its effects.
Ekhi 	The known disruption would extend to roughly the size of a large metropolitan area to an entire country. The potential disruption could extend to the entire known world. The spread would be swift and difficult to manage. The Foundation would find it quite difficult to neutralize its effects.
Amida 	This Disruption Class should be reserved for special circumstances when The Foundation is essentially "declaring war" on an anomaly. When an anomaly poses such a dire threat to the status quo and The Foundation's veil that there is no other option than to use all possible options in order to Neutralize it. The effects of an Amida anomaly would extend to the entire known world and possibly the entire universe.
===Risk Classes ===
Risk Class	Description
Notice 	The anomalous effects of the object are nearly non-existent to mild. An individual within close proximity of the object would not feel anything as a result of the object. It poses no danger to any individual nearby.
Caution 	The anomalous effects of the object are mild to moderate. An individual within close proximity of the object may feel mild effects from the anomalous object. It poses mild danger to any individual nearby.
Warning 	The anomalous effect of the object are moderate to significant. An individual within close proximity of the object will feel mild effects or may feel major effects from the anomalous object. It poses moderate danger to any individual nearby.
Danger 	The anomalous effect of the object are significant to extreme. An individual within close proximity of the object will feel major effects or may feel extreme effects from the anomalous object. It poses significant danger to any individual nearby.
Critical 	This Risk Class should only be chosen when the object's effects will be near instant and/or extremely severe. It does not, necessarily, need to cause actual death, but death is incredibly likely and expected. Any individual nearby will feel the effects near instantly and the possibility of recovery is impossible.
==Threat Levels==
Threat Levels are a relatively unused classification originating from this post by author Axton. Around the time when threat levels started getting used the ACS system was made, which likely resulted in it being basically unused.
Threat Level (Color)	Description
○ White 	The object is beneficial to the Foundation and its use is strictly regulated, as detailed in the object's special containment procedures. Often assigned to Safe class objects.
● Blue 	The object might be beneficial, but its mechanisms are poorly understood or remain unknown. This applies to items with undefined properties or to entities that react differently to different individuals. Often assigned to Safe and Euclid class objects.
● Green 	The object is not beneficial, but isn't harmful as long as it is handled correctly. Often assigned to Safe and Euclid class objects.
● Yellow 	The object is harmful but easy to recontain. This may indicate that it can quickly be brought under control as long as certain, easily achievable conditions are met. May be assigned to either Safe, Euclid, or even Keter class objects.
● Orange 	The object is unpredictable, exhibiting dangerous properties and is difficult to recontain. It is generally the lowest level assigned to humanoid entities. Often assigned to Euclid and Keter class objects.
● Red 	The object is highly unpredictable and possesses considerable destructive capabilities. A containment breach may escalate into a K-Class Scenario, and the object's recontainment is to be considered a high priority. Often assigned to Euclid and Keter class objects.
● Black 	The object possesses the capacity for destruction on a global scale. Moreover, containment breaches by such objects are to be considered synonymous with an XK-Class scenario and its recontainment and/or neutralization is to be considered top priority. It is chiefly assigned to Keter class objects.
==External links==
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Category:Safe
Category:Euclid
Category:Keter
Category:Thaumiel
Category:Apollyon
Category:Neutralized
Category:Archon