Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
MIL-STD-1180B was updated in 1991. You can find it by search: MIL-STD-1180B August 1991. Subscription service techstreet.com shows the 1991 revision but not any others; as far as I know the 1991 revision is the latest.
I came across the attached timeline for the introduction of FMVSS...