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 This is the collection of all linux related documentation
 
+## IMPORTANT - PSI Directives / Weisungen
+Regardless of the content of this documentation, all PSI directives have precedence and need to be applied/followed. Among others these are some of the most relevant ones regarding IT systems:
+- [AW-95-06-01](https://DLS01P.PSI.CH/documents/jsp/qv?id=PSIcgc_fi20220000526102) / [AW-95-06-01e](https://DLS01P.PSI.CH/documents/jsp/qv?id=PSIcgc_fi20220000526095) Usage and Monitoring of IT Ressources at PSI
+- [AA-9500-142](https://DLS01P.PSI.CH/documents/jsp/qv?id=PSIcgc_fi20230003212302) Umgang mit Softwareaktualisierung
+
 
 ## Issues / Tickets / Tasks
 |||