[ppml] past due annual renewal policy

Section 4.2.1.2 (Annual Renewal) of the ARIN Number Resource Policy Manual 
mentions that:

  If not paid by the anniversary date, the address space may be revoked.

Is there an actual policy as to the number of years or a dollar figure a 
member can get behind paying their annual fees before ARIN attempts to 
revoke IP/ASN resources?

I've been contacted by a network that is behind (how far, I don't know) 
and has just been given rather short notice that their PI IP space is 
about to be revoked.  I wasn't aware of this ever having happened before, 
so I wonder if there are any precedents or policies on the matter?

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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