diff --git a/docs/reviewing.md b/docs/reviewing.md
index c3b80917ef..26d73c1800 100644
--- a/docs/reviewing.md
+++ b/docs/reviewing.md
@@ -7,7 +7,9 @@ The following policies are preferred during the review, but not mandatory:
 
   * [Trailing white-spaces](#trailing-white-spaces)
   * [Quotes](#quotes)
-  * [Order of methods and attributes](#order-of-methods-and-attributes)<!-- endToc -->
+  * [Order of methods and attributes](#order-of-methods-and-attributes)
+  * [License Attribute](#license-attribute)
+  * [Test Package](#test-package)<!-- endToc -->
 
 ## Trailing white-spaces
 
@@ -51,6 +53,10 @@ the order above resembles the execution order of methods on CI. therefore, for i
 The contents of `test_package.c` or `test_package.cpp` should be as minimal as possible, including a few headers at most with simple instatiation of objects to ensure linkage
 and dependencies are correct.
 
+## License Attribute
+
+The mandatory license attribute of each recipe **should** be a [SPDX license](https://spdx.org/licenses/) [short Identifiers](https://spdx.dev/ids/) when applicable.
+
 ### Verifying Components
 
 When components are defined in the `package_info` in `conanfile.py` the following conditions are desired