77 Ill. Adm. Code 675.130
Referral Criteria
Section 675
Section 675.130Â Referral
Criteria
a)Â Â Â Â Â Â Â Â A child is considered to have "failed" the threshold
test and is referred for a medical examination and an educational screening
evaluation if either or both of the following criteria are met:
1)Â Â Â Â Â Â Â Â Any two speech frequencies (500-1000-2000 Hz) in the same ear
which fall on or below the referral line, or
2)Â Â Â Â Â Â Â Â Any two consecutive frequencies in the same ear which fall on
or below the referral line (250-500, 2000-4000 or 4000-8000 Hz).
b)Â Â Â Â Â Â Â Â The referral line is at 30 dB for the frequencies 500, 1000,
and 2000 Hz and at 40 dB for the frequencies 250, 4000 and 8000 Hz.