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Determining STS for OSHA Log 300 Based Upon the New Criteria

see also: Main Story

OSHA made a change in the recording of hearing loss as an injury on the OSHA Log 300 from a 25 dB STS to a 10 dB STS. The revision of OSHA 1904 went into effect January 1, 2003.

How to determine an OSHA Recordable 10 dB STS in a three-step process. The procedure is based upon a threshold average at 2000, 3000, 4000Hz for either ear when comparing Baseline or Revised Baseline to the Current Test.

Step 1: If the Current Test average at 2, 3, 4 kHz in either ear is at least 25 dB (without age correction) then the shift may be OSHA recordable-go to Step 2. If it's not-you can stop here-it's not recordable.

Step 2: Compare the "Original Baseline" average (or last "Revised Baseline") at 2, 3, 4 Hz in either ear to the "Current" Test average (with age correction-see the OSHA Web site for applying age correction; examples are also provided). If the average difference is 10 dB or more-then go to Step 3. If it's not-it's not recordable.

Step 3: The STS is required to be put on the Log 300 if:

  1. A retest is done within 30 days and the shift is confirmed or
  2. If a retest is not done within 30 days the loss is considered "confirmed" or
  3. If an audiologist or physician has determined that, in part, the shift is most likely work noise-related.

The shift must be recorded within seven days of the retest (or if no retest was performed after 30 days-meaning 37 days) or if determined by the professional reviewer.



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