The U.S. government established milestones for agencies to deploy IPv6. In June 2008, they had to pass IPv6 packets across their backbone networks. In July 2010, they had to start buying IPv6-Ready IT products. In September 2012, they must support IPv6 on their public facing Websites. While only 42% of federal Websites are making progress on the latest deadline, according to NIST, this is more progress than other nations have made. For example, 258 U.S. federal domains had operational IPv6 Web service for the Internet Society's World IPv6 Launch Day in June. This represents 8.6% of the Websites participating in that event.
EDITOR'S NOTE: In fairness, the U.S. isn't leading every IPv6 metric. In APNIC's world rankings of nations by the number of Internet users that prefer IPv6 traffic over IPv4 traffic, the U.S. is fifth, behind Romania, France, Luxembourg and Japan:
Country IPv6 Preference
1. Romania 11%
2. France 4.27%
3. Luxembourg 2.98%
4. Japan 2.38%
5. United States 1.70%
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