diff --git a/doc/project/justmip.rst b/doc/project/justmip.rst
new file mode 100644
index 0000000000..edcf31d973
--- /dev/null
+++ b/doc/project/justmip.rst
@@ -0,0 +1,21 @@
+JustMIP (:mod:`.project.justmip`)
+*********************************
+
+Project information
+===================
+
+.. todo:: Complete the following list items:
+
+- Website: …
+- Project period: …
+
+Data
+====
+
+Code reference
+==============
+
+.. currentmodule:: message_ix_models.project.justmip
+
+.. automodule:: message_ix_models.project.justmip
+   :members:
diff --git a/message_ix_models/project/justmip/__init__.py b/message_ix_models/project/justmip/__init__.py
new file mode 100644
index 0000000000..ffe2f6b75d
--- /dev/null
+++ b/message_ix_models/project/justmip/__init__.py
@@ -0,0 +1 @@
+"""JustMIP project."""
diff --git a/message_ix_models/tests/project/test_justmip.py b/message_ix_models/tests/project/test_justmip.py
new file mode 100644
index 0000000000..e69de29bb2