diff --git a/cpp-coding-policy.md b/cpp-coding-policy.md
index faa066b..b6335bd 100644
--- a/cpp-coding-policy.md
+++ b/cpp-coding-policy.md
@@ -16,6 +16,7 @@ limited to `gets()`, `strcpy()`, `sprintf()`, etc.
 * Use of C string manipulation functions with an explicit size, such as `snprintf()`, is acceptable.
 * Field width specifiers are required on all `sscanf()` calls that write to strings. For example, `%30s` rather than
 `%s`.
+*  Do not use `usleep(..)` but use instead multiplatform C++ code `std::this_thread::sleep_for(std::chrono::microseconds(..))` 
 
 # Global Variables