> ## Documentation Index
> Fetch the complete documentation index at: https://docs.activeviam.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CSR non-sec buckets

> The CSR non-Sec Buckets hierarchy in the Buckets dimension of FRTBCombinedCube, defining the regulatory sensitivity buckets for the CSR non-Sec risk class per Basel MAR21.51

|                 |                                                                                                                                             |
| --------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
| **Description** | Sensitivity buckets for the CSR non-Sec risk class.                                                                                         |
| **Reference**   | [\[MAR21.51\]](https://www.bis.org/basel_framework/chapter/MAR/21.htm?inforce=20230101\&published=20200327#paragraph_MAR_21_20230101_21_51) |
| **Dimension**   | Buckets                                                                                                                                     |
| **Hierarchy**   | CSR non-Sec Buckets                                                                                                                         |
| **Levels**      | \[ALL, CSR non-Sec Bucket]                                                                                                                  |