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+## Are you a test designer, a test developer or a tool vendor? 
+
+**Your contribution is most welcome!** 
+
+Active contributions to the TDL standardisation require an ETSI membership. 
+
+Any interested company can find how to become an ETSI member [here](http://www.etsi.org/membership/apply). 
+
+## The TOP source base is openly accessible
+
+Its usage is governed by the Eclipse Public License (EPLv1). A source code contribution to TOP (merge request) requires adhering to EPLv1 and signing a Contributor Agreement between the developer and ETSI TC MTS beforehand.
+
+* Find out more about TOP governance on the [Governance wiki page](Governance). 
+* Find out more information on how to contribute here.