EP 1110-1-28
31 Aug 01
Developments with fewer units should be treated as a series of single-family h using
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units.
The number of similar units, similar common areas or exterior sites to be tested (the
sample size) is based on the total number units, similar common areas or exterior sites in
the building(s), as specified in Table 7.3. Use the table for sampling each set of similar
units, each set of similar common areas and each set of exterior sites. For pre-1960 or
unknown-age buildings or development with 1,040 or more similar units, similar
common areas or exterior sites, test 5.8 percent of them, and round up any fraction to
the next whole number. For 1960-1977 buildings or developments with 1,000 or more
units, test 2.9 percent of the units, and round up any fraction to the next whole number.
For reference, the table shows entries from 1500 to 1000 in steps of 500. For
example, in a development built in 1962, with 200 similar units, 20 similar common
areas, and 9 similar exterior sites, sample 27 units, 16 common areas, and all 9 exterior
sites.
Appendix 12 of the HUD Guidelines details the statistical rationale for this table.
B-5
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