ADS-B roll out around the world

According to this EU document ADS-B will become mandatory within EU from 2015/2017.
http://eur-lex.europa.eu/LexUriServ/...35:0052:EN:PDF

4. Operators shall ensure that:
(a) aircraft operating flights referred to in Article 2(2) with an
individual certificate of airworthiness first issued on or after
8 January 2015 are equipped with secondary surveillance
radar transponders having the capabilities set out in Part A
of Annex II;

5. Operators shall ensure that by 7 December 2017 at the latest:
(a) aircraft operating flights referred to in Article 2(2), with an
individual certificate of airworthiness first issued before
8 January 2015, are equipped with secondary surveillance
radar transponders having the capabilities set out in Part A
of Annex II;

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According to this page ADS-B will be mandatory in Australia above FL290 from 12 Dec 2013.
http://www.airservicesaustralia.com/...e-mandate-2013

The new requirements make fitment and operation of approved ADS-B avionics equipment mandatory on, and from, 12 December 2013 for all Australian aircraft operations at, or above, FL 290 (unless CASA has authorised otherwise).

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Have you found any official information about ADS-B in other countries?