diff --git a/docs/src/developers_guide/contributing_pytest_conversions.rst b/docs/src/developers_guide/contributing_pytest_conversions.rst
index 617955c5a1..a270ac1011 100644
--- a/docs/src/developers_guide/contributing_pytest_conversions.rst
+++ b/docs/src/developers_guide/contributing_pytest_conversions.rst
@@ -50,6 +50,10 @@ Conversion Checklist
 #. Check for references to ``self.tmp_dir``. In pytest, ``tmp_path`` is used instead,
    and can be passed into functions as a fixture.
 #. Check for ``if __name__ == 'main'``. This is no longer needed with pytest.
+#. Replace any remaining references to :mod:`iris.tests` with references to 
+   :mod:`iris.tests._shared_utils`. (E.g. :func:`iris.tests.get_data_path` to
+   :func:`iris.tests._shared_utils.get_data_path`).
+#. Remove the top-level import of :mod:`iris.tests` (usually ``import iris.tests as tests``).
 #. Check for ``mock.patch("warnings.warn")``. This can be replaced with
    ``pytest.warns(match=message)``.
 #. Ensure that all test classes start with ``Test``. Tests will not run in pytest without it.