Added RICS

codelists/Registers.xml

@@ -76,6 +76,13 @@
     <organization xml:lang="en">RailNetEurope</organization>
     <remarks xml:lang="en">Used for the communication between the railway undertaking and the infrastructure manager. format: country code as ISO-3366-1 + 5 digits</remarks>
   </register>
+  <register code="RICS">
+    <name xml:lang="en">Railway Interchange Coding System (RICS)</name>
+    <organization xml:lang="en">International union of railways (UIC)</organization>
+    <organization xml:lang="fr">Union Internationale des Chemins de fer (UIC)</organization>
+    <remarks xml:lang="en">4 digit codes used in various applications to identify a company involved in the railway business</remarks>
+    <remarks xml:lang="en">https://uic.org/support-activities/it/rics</remarks>
+  </register>
   <register code="RL100">
     <name xml:lang="de-DE">Betriebsstellenverzeichnis</name>
     <organization xml:lang="de-DE">DB</organization>