diff --git a/DCO b/DCO
new file mode 100644
index 0000000..8201f99
--- /dev/null
+++ b/DCO
@@ -0,0 +1,37 @@
+Developer Certificate of Origin
+Version 1.1
+
+Copyright (C) 2004, 2006 The Linux Foundation and its contributors.
+1 Letterman Drive
+Suite D4700
+San Francisco, CA, 94129
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+
+Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) 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
+
+(b) 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
+
+(c) The contribution was provided directly to me by some other
+    person who certified (a), (b) or (c) and I have not modified
+    it.
+
+(d) 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.
diff --git a/README b/README
index cdd32a6..7b981d3 100644
--- a/README
+++ b/README
@@ -3,3 +3,13 @@
 
 For patches, please prefix your subject with "[PATCH dt-utils]" (for example,
 see the git-config manpage for the option format.subjectPrefix).
+
+This project uses the Developer's Certificate of Origin, as stated in the file
+DCO in this repository, with the same process as used for the Linux kernel:
+<https://www.kernel.org/doc/html/latest/process/submitting-patches.html#sign-your-work-the-developer-s-certificate-of-origin>
+By adding a Signed-off-by line (e.g. using `git commit -s`) saying
+
+  Signed-off-by: Random J Developer <random@developer.example.org>
+
+(using your real name and e-mail address), you state that your contributions
+are in line with the DCO.