i got tired of waiting for BMW, so i contacted the EPA myself and got this interesting tidbit:

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[email protected] to me:

We have issued our certificate for the diesel X5. It is possible that BMW is still waiting for their CARB approval (I don't know), but we are done with our testing.


XXX XXX
Manager, Light-Duty Vehicle Group
Compliance and Innovative Strategies Division
United States Environmental Protection Agency
==============

so looks like we are again waiting for CARB, which i heard was the delay on the 2010's last year too. when i called the CARB info hotline, the woman told me she couldn't release any information, and to contact BMW.