diff --git a/tox.ini b/tox.ini
index c614d8d3..cf22519c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -33,12 +33,6 @@ commands =
 max-line-length = 79
 verbose = 2
 statistics = True
-select =
-;   -- flake8-bugbear --
-;    B902 Invalid first argument used for instance method.
-;    B903 Data class should either be immutable or use __slots__ to save memory.
-    B902, B903
-
 ignore =
 ;   -- flake8 --
 ;    E501 line too long
@@ -78,7 +72,15 @@ deps =
     flake8-quotes
 skip_install = true
 commands =
+;   ** PRIMARY TESTS **
+;   Run flake8 tests (with plugins) using default test selections
     flake8 core tests setup.py
+;   ** SELECTIVE TESTS **
+;   Run flake8 tests (with plugins) for specific optional codes defined below
+;   -- flake8-bugbear --
+;    B902 Invalid first argument used for instance method.
+;    B903 Data class should be immutable or use __slots__ to save memory.
+    flake8 core tests setup.py --select=B902,B903
 
 [coverage:run]
 omit =