diff --git a/documentation/ca-cli.md b/documentation/ca-cli.md
index b09920b1c..f6d53550e 100644
--- a/documentation/ca-cli.md
+++ b/documentation/ca-cli.md
@@ -9,3 +9,10 @@ cainfo
 camonitor
 caput
 ```
+
+``` {toctree}
+:titlesonly:
+:caption: Utilities
+
+acctst
+```
diff --git a/modules/ca/src/client/Makefile b/modules/ca/src/client/Makefile
index e80e0adfc..0d201e8eb 100644
--- a/modules/ca/src/client/Makefile
+++ b/modules/ca/src/client/Makefile
@@ -12,6 +12,7 @@ TOP = ../../../..
 include $(TOP)/configure/CONFIG
 
 HTMLS += CAref.html
+DOCS += acctst.md
 
 #
 #	includes to install from this subproject
diff --git a/modules/ca/src/client/acctst.md b/modules/ca/src/client/acctst.md
new file mode 100644
index 000000000..036b440bc
--- /dev/null
+++ b/modules/ca/src/client/acctst.md
@@ -0,0 +1,18 @@
+# acctst
+
+    acctst <PV name> [progress logging level] [channel duplication count]
+                     [test repetition count] [enable preemptive callback]
+
+## Description
+
+Channel Access Client Library regression test.
+
+The PV used with the test must be native type `DBR_DOUBLE` or `DBR_FLOAT`,
+and modified only by acctst while the test is running. Therefore,
+periodically scanned hardware attached analog input records do not work
+well. Test failure is indicated if the program stops prior to printing
+"test complete". If unspecified the progress logging level is zero,
+and no messages are printed while the test is progressing. If
+unspecified, the channel duplication count is 20000. If unspecified, the
+test repetition count is once only. If unspecified, preemptive callback
+is disabled.