Back in June I assumed the Unicorporated Nonprofit Association act become law in the District of Columbia. See, we have this window where the Congress can zap legislation so it's not always clear until the "birth announcement" is made. The change was a part of an omnibus bill that revamped Title 29 of the D.C. code, which also includes the provisions for corporations, LLCs, cooperatives and the like.
Well, it seems that the law became active January 1, 2012. I say seems because that's when the new fees became valid, but since there's no filing requirement for the unincorporated nonprofit associations, there's consequently no fee and so no reference in this notice.