User Configuration > Administrative Templates > Microsoft Word 2016
User
HKCU\software\policies\microsoft\office\16.0\word\options
Control Access to the Agreements Ribbon in Word. This policy setting allows you to control who in your organization can see the Agreements ribbon in Word and leverage the capabilities to create and manage the agreements lifecycle in Word. If you enable this policy setting, you can configure groups of users who will see the Agreements ribbon. If you disable this policy setting, the Agreements ribbon will not be available to users in your organization. If you do not set this policy setting, the Agreements ribbon will not be available to users in your organization.