diff --git a/doc/source/build_cpl/adding-components.rst b/doc/source/build_cpl/adding-components.rst
index 0310d127530..bedbd740655 100644
--- a/doc/source/build_cpl/adding-components.rst
+++ b/doc/source/build_cpl/adding-components.rst
@@ -1,6 +1,5 @@
-.. _adding-components:
+.. _adding-component-cime:
-====================================
Adding a New Component Model to CIME
====================================
@@ -99,28 +98,32 @@ CIME requires each component model to adhere to a standard interface for communi
3. Register the Component
~~~~~~~~~~~~~~~~~~~~~~~~~
-1. **Define Component Source Paths:**
- Each Earth system model must define its component model source paths in its ``config_files.xml`` file. For example, in CESM, these paths are specified in ``cime/CIME/data/config/cesm/config_files.xml``. Add an entry for your new component model here:
+1. **Define Component Root Directory:**
+ Each component model must define its root directory using the variable ``COMP_ROOT_DIR_XXX`` in the ``config_files.xml`` file, where ``XXX`` represents the component class (e.g., ATM, LND, ICE). For example:
.. code-block:: xml
-
- char
- components//src
-
+
+ char
+
+ $SRCROOT/components/cdeps/datm
+ $CIMEROOT/CIME/non_py/src/components/stub_comps_$COMP_INTERFACE/satm
+ $CIMEROOT/CIME/non_py/src/components/xcpl_comps_$COMP_INTERFACE/xatm
+
+ $SRCROOT/components/cam/
+ $SRCROOT/components/fv3/
+ $SRCROOT/components/myatm/
+
+ case_comps
+ env_case.xml
+ Root directory of the case atmospheric component
+ $CIMEROOT/CIME/data/config/xml_schemas/config_compsets.xsd
+
2. **Update ``config_compsets.xml``:**
- Add the new component to a compset definition:
-
- .. code-block:: xml
+ The ``config_compsets.xml`` file can be used to define aliases for long compset names, easing the burden of specifying full names. However, aliases are optional.
-
- COMPSETNAME
- ALIASNAME
-
-
-
-
+ The component name in the long compset name must match the name used in the ``description`` section of the ``config_component.xml`` file. Additionally, the ``config_component.xml`` file must include a variable ``COMP_XXX`` (where ``XXX`` is the component class, e.g., ATM, LND, ICE). This variable is essential for defining the component in the context of CIME.
---
@@ -194,10 +197,8 @@ Adding a New Land Model (``MyLandModel``)
1. Create ``components/mylandmodel/`` with the required directory structure.
2. Implement the interface routines (``mylandmodel_init``, ``mylandmodel_run``, ``mylandmodel_finalize``).
-3. Define the component's source paths in ``config_files.xml``.
+3. Define the component's root directory in ``config_files.xml`` using the variable ``COMP_ROOT_DIR_LND``.
4. Register ``MyLandModel`` in ``config_compsets.xml``.
5. Define flux mappings in the coupler configuration files.
6. Test the integration using predefined compsets and submit results for validation.
----
-