diff --git a/doc/appendices/command-line/traffic_manager.en.rst b/doc/appendices/command-line/traffic_manager.en.rst
index 671db8d7f7e..5c7b3547cbb 100644
--- a/doc/appendices/command-line/traffic_manager.en.rst
+++ b/doc/appendices/command-line/traffic_manager.en.rst
@@ -52,6 +52,14 @@ SIGHUP
 SIGINT, SIGTERM
   These signals cause :program:`traffic_manager` to exit after also shutting down :program:`traffic_server`.
 
+SIGUSR2
+  This signal causes the :program:`traffic_manager` and :program:`traffic_server` processes to close
+  and reopen their file descriptors for all of their log files. This allows the use of external
+  tools to handle log rotation and retention. For instance, logrotate(8) can be configured to rotate
+  the various |ATS| logs and, via the logrotate postrotate script, send a `-SIGUSR2` to the
+  :program:`traffic_manager` process. After the signal is received, |ATS| will stop logging to the
+  now-rolled files and will reopen log files with the originally configured log names.
+
 Exponential Back-off Delay
 ==========================