(ii) Unaided audiometric testing on each ear that results in all of the following:
(A) An unaided 4-frequency average pure tone threshold for each ear, as derived
from the pure tone air conduction audiogram at 500, 1,000, 2,000, and 3,000 Hertz, of not
poorer than a hearing level of 25 decibels, and a hearing threshold level at any single
frequency of not poorer than 35 decibels.
(B) Unaided speech recognition scores of 90% or better in each ear, measured under
audiometric earphones at 50 decibels in quiet, and using full lists of recorded phonetically
balanced words that are age-appropriate.
(C) An unaided speech recognition score of 70% or better, measured for both ears at
the same time in an audiometric sound field at a plus 5 decibel signal-to-noise ratio. For
this measurement, speech stimuli and competing speech noise shall be presented through
the same loudspeaker, or 2 loudspeakers stacked vertically, at zero degree azimuth.
Speech stimuli shall be presented at 50 decibels using a full list of recorded phonetically
balanced words that are age-appropriate.
(iii) Audiometric testing with 1 or both ears aided that results in all of the following:
(A) An aided 4-frequency average threshold for each ear, as derived from the sound
field aided audiogram at 500, 1,000, 2,000, and 3,000 Hertz of not poorer than a hearing
level of 25 decibels, and a hearing threshold level at any single frequency of not poorer
than 35 decibels. Measurements shall be made monaurally in an audiometric sound field
with the unaided (non-test) ear plugged or, when necessary, effectively masked. Test
signals shall consist of either frequency-specific modulated tones or narrow band noise
presented through a loudspeaker at zero degree azimuth, and results shall be expressed as
aided hearing levels.
(B) Aided speech recognition scores of 90% or better in each ear measured at 50
decibels in quiet, and using full lists of recorded phonetically balanced words that are age
appropriate. Measurements shall be made monaurally in an audiometric sound field with
the loudspeaker at zero degree azimuth and the unaided (non-test) ear plugged or, when
necessary, effectively masked.
(C) An aided speech recognition score of 70% or better, measured for both ears at
the same time in an audiometric sound field at a plus 5 decibel signal-to-noise ratio. For
this measurement, either 1 or both ears shall be fitted with a hearing aid, and, where only
1 ear has been fitted with a hearing aid, the unaided ear shall not be plugged or masked.
For this measurement, speech stimuli and competing speech noise shall be presented
through the same loudspeaker, or 2 loudspeakers stacked vertically, at zero degree
azimuth. Speech stimuli shall be presented at 50 decibels using a full list of recorded
phonetically balanced words that are age-appropriate.
(d) Be free from any of the following, which may impair the performance of the
essential job functions of a law enforcement officer or which may endanger the lives of
others or the law enforcement officer:
(i) Physical defects.
(ii) Chronic diseases.
(iii) Mental and emotional instabilities. The commission permits and may require
the determination of compliance with this requirement be made by a board certified
psychiatrist or a licensed psychologist.
(e) The commission may establish specific tests, procedures, and qualifications for
use in determining compliance with the medical standards in R 28.14204 (a) to (e).
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