diff --git a/spec_7.rst b/spec_7.rst
index 0d73c10..67ae31b 100644
--- a/spec_7.rst
+++ b/spec_7.rst
@@ -86,6 +86,24 @@ to one parameter per line, at the same indent level.  Example:
                   FLUX_NODEID_ANY,
                   FLUX_RPC_RESPONSE);
 
+10. Long test expressions connected by "AND" or "OR" operators SHOULD
+be broken to one test expression per line at the same indent level.
+Example:
+
+  .. code-block:: c
+
+    if (out->type == MY_EXPECTED_TYPE
+        && (out->bytes > MIN_BYTES
+            && out->bytes <= MAX_BYTES)) {
+        ...
+    }
+
+  .. code-block:: c
+
+    if (flux_event_subscribe (h, "event.foo") < 0
+        || flux_event_subscribe (h, "event.bar") < 0) {
+        ...
+    }
 
 Variable Names
 ==============