USE CASE Source code delivery OR Binary delivery YOU MUST Provide License text ATTRIBUTE Viewable YOU MUST Provide Legal notices IF NOT Legal notices YOU MUST Provide Copyright notice "W3C Software Short Notice https://www.w3.org/Consortium/Legal/2002/copyright-software-short-notice-20021231.html" IF Software modification YOU MUST Provide Modification notice YOU MUST Provide Modification date YOU MUST NOT Promote