This is the allocation indicator file used by the NONROAD model.
These data are used to allocate from state level equipment population
to county level equipment populations.  It could also be used to
allocate national level equipment populations to states level.  Additional
data can be added to allocate from from county to subcounty.

JLO DAQ 09/26/2013 Taken from the 2005 Ozone SIP documant, Table 4-7. 
Delaware County Allocation Factor Data for Replacing NONROAD defaults. 
I was not able to find this data in any allocation DE_RVPRK.ALO files. 
The allocations are in sq km of rural land area

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This is the packet that contains the allocation indicator data.  Each
indicator value is a measured or projected value such as human
population or land area.  The format is as follows.

1-3    Indicator code
6-10   FIPS code (can be global FIPS codes e.g. 06000 = all of CA)
11-15  Subregion code (blank means is entire nation, state or county)
16-20  Year of estimate or prediction
21-40  Indicator value
41-45  Blank (unused)
46+    Optional Description (unused)
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/INDICATORS/
RVP  10000      2008                3261     DE
RVP  10001      2008                 993     Kent
RVP  10003      2008                 508     New Castle
RVP  10005      2008                1760     Sussex
/END/
