Elliptic curves approved or recommended by government

[alex_chen@xxxxxxxxxxxxx (Alex Chen)]

I see there is a list of recommended list by NIST in 
http://csrc.nist.gov/groups/ST/toolkit/documents/dss/NISTReCur.pdf, but 
it is very old (1999)
Is there a up to date list of elliptic curves approved or recommended 
for government use in OpenSSL?
Is NID_X9_62_prime256v1 the strongest?

Thanks
Alex