Hi guys,
This is month old news. Lot of people probably have already knew, but still this is for those interested.
Publication of the final version of NIJ Standard 0101.07 is expected in late 2018, nearly ten years after the previous NIJ Standard 0101.06 came out.
The biggest change is that the terms “HG1” and “HG2” replace Level II and Level IIIA respectively and represent handgun (HG) threats. The terms “RF1” and “RF3” represent rifle (RF) threats and replace Level III and Level IV, respectively.
And another biggest change is also an entirely new threat level has been introduced to fill the gap between RF1 and RF3. This RF2 threat level includes protection against the 5.56mm M855 round. The M855 bullet is 62 gr with a “penetrator” steel core at the tip, enabling it to more easily get through barriers.
Direct link about this standard:
https://www.nij.gov/Documents/nij-standard-0101-07-ballistic-resistant-body-armor-draft-for-comment.pdf