diff --git a/user_guide_src/source/DCO.rst b/user_guide_src/source/DCO.rst
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+#####################################
+Developer's Certificate of Origin 1.1
+#####################################
+
+By making a contribution to this project, I certify that:
+
+(1)	The contribution was created in whole or in part by me and I
+	have the right to submit it under the open source license
+	indicated in the file; or
+
+(2)	The contribution is based upon previous work that, to the best
+	of my knowledge, is covered under an appropriate open source
+	license and I have the right under that license to submit that
+	work with modifications, whether created in whole or in part
+	by me, under the same open source license (unless I am
+	permitted to submit under a different license), as indicated
+	in the file; or
+
+(3)	The contribution was provided directly to me by some other
+	person who certified (1), (2) or (3) and I have not modified
+	it.
+
+(4)	I understand and agree that this project and the contribution
+	are public and that a record of the contribution (including all
+	personal information I submit with it, including my sign-off) is
+	maintained indefinitely and may be redistributed consistent with
+	this project or the open source license(s) involved.