diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..cfba094
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,18 @@
+Any contribution that you make to this repository will
+be under the Apache 2 License, as dictated by that
+[license](http://www.apache.org/licenses/LICENSE-2.0.html):
+
+~~~
+5. Submission of Contributions. Unless You explicitly state otherwise,
+   any Contribution intentionally submitted for inclusion in the Work
+   by You to the Licensor shall be under the terms and conditions of
+   this License, without any additional terms or conditions.
+   Notwithstanding the above, nothing herein shall supersede or modify
+   the terms of any separate license agreement you may have executed
+   with Licensor regarding such Contributions.
+~~~
+
+Contributors must sign-off each commit by adding a `Signed-off-by: ...`
+line to commit messages to certify that they have the right to submit
+the code they are contributing to the project according to the
+[Developer Certificate of Origin (DCO)](https://developercertificate.org/).
diff --git a/tracetools/QUALITY_DECLARATION.md b/tracetools/QUALITY_DECLARATION.md
index 8f56509..f73f51c 100644
--- a/tracetools/QUALITY_DECLARATION.md
+++ b/tracetools/QUALITY_DECLARATION.md
@@ -40,7 +40,8 @@ All changes occur through a merge request.
 
 ### Contributor Origin [2.ii]
 
-`tracetools` does not currently have any contributor origin policy.
+`tracetools` uses DCO as its confirmation of contributor origin policy. More information can be found in [CONTRIBUTING](../CONTRIBUTING.md).
+There is currently no automated check.
 
 ### Peer Review Policy [2.iii]
 
@@ -168,7 +169,7 @@ The table below compares the requirements in REP-2004 with the current state of
 |1.vi| API/ABI stablility policy within ROS distribution | ✓ |
 |2| **Change control process** ||
 |2.i| All changes occur through change request | ✓ |
-|2.ii| Confirmation of contributor origin |  |
+|2.ii| Confirmation of contributor origin | ✓ * |
 |2.iii| Peer review policy | ✓ * |
 |2.iv| CI policy for change requests | ✓ |
 |2.v| Documentation policy for change requests | ✓ |