Version 2 of the Observations Data Model (ODM2) has several controlled vocabularies. This web page was developed to promote consistency between different instances of ODM2 through a community moderated system for managing the master controlled vocabularies. This web page displays the master controlled vocabulary entries and allows you to request additions or changes to these. You may then use these terms in an ODM2 database or in files that are intended to be interoperable with ODM2.