In the CTA Corporation, there are 5 primary containment classes used to classify how hostile and difficult the anomaly is to contain.
The following are the 5 primary containment classes:
Amicus: Amicus is Latin for friend. Anomalies classified as Amicus do not require strict containment procedures and can be contained with little effort.
Amicus-Impetus: Amicus-Impetus classified anomalies can be easily contained, but require a little more effort to contain than Amicus class objects. These objects tend to affect only 1 person when used or approached.
Ignotus: Ignotus classified anomalies normally are difficult to contain and aren't well understood. These objects' threat levels can be either Amicus-Impetus or Caputalis but are never specified.
Caputalis: Caputalis classified anomalies require strict containment procedures to be contained, and tend to be hostile to all humans. These objects may cause containment breaches if not actively watched.
Letalis: Letalis classified anomalies are extremely hostile to living things and sometimes are uncontainable. They may even have the ability to cause an end-of-the-world scenario.
There are also other non-primary object classes:
Class A: Class A Anomalies are very difficult to contain, but aren't exactly hostile. These objects are to be approached with caution.
Class B: Class B Anomalies are extremely hostile, but are easy to contain.
Neutralized: Neutralized Anomalies are… well… neutralized. (Killed, destroyed, etc.)