The text says "if you can certify DCO then you add a Singed-off-by trailer". But it does not say anything about people who cannot certify. A natural reading may be that if you cannot certify, you do not add the trailer, but it shouldn't hurt to be overly explicit. Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx> --- Documentation/SubmittingPatches | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git c/Documentation/SubmittingPatches w/Documentation/SubmittingPatches index d12094bac5..b091730771 100644 --- c/Documentation/SubmittingPatches +++ w/Documentation/SubmittingPatches @@ -307,35 +307,35 @@ wrote the patch or have the right to pass it on under the same license as ours, by "signing off" your patch. Without sign-off, we cannot accept your patches. -If you can certify the below D-C-O: +If (and only if) you can certify the below D-C-O: [[dco]] .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. ____ you add a "Signed-off-by" trailer to your commit, that looks like this: