From my understanding of government contracting, in general, if there were a treaty obligation that imposed a requirement on the US government and had the force of law, in order for it be promulgated onto ICANN as a US Contractor, it would have to be included in the Federal Acquisition Regulation and then incorporated into the contract.  From a quick review of the IANA functions contract, I don’t see the specific human rights-related covenants and guidelines that Avri mentioned in her email to be incorporated into the IANA functions contract.

Of course, ICANN is based in the U.S. and complies with all applicable laws and regulations.

Hope this is helpful.

Sam