2014 Iowa Code
TITLE III - PUBLIC SERVICES AND REGULATION
SUBTITLE 2 - EMPLOYMENT SERVICES
CHAPTER 85B - OCCUPATIONAL HEARING LOSS
SECTION 85B.5 - Excessive noise exposure.

85B.5  Excessive noise exposure.

1.  An excessive noise exposure is sound which exceeds the times and intensities listed in the following table:

Duration   Sound level,   Duration   Sound level,per day   dBA slow   per day   dBA slowhours   response   minutes   response                8     90    52    106 7     91    45    107 6     92    37    108 5     93    33    109 4 1/2     94    30    110 4     95    26    111 3 1/2     96    22    112 3     97    18    113 2 1/2     98    16    114 2 1/4     99    15    115 2    100    No exposure greater 1 3/4    101    than 115 permitted 1 1/2    102 1 1/4    103 1 1/8    104 1    105  

2.  The workers’ compensation commissioner may promulgate rules pursuant to chapter 17A to amend this table based upon changes recommended in nationally recognized consensus standards.

3.  An employer shall immediately inform an employee if the employer learns that the employee is being subjected to sound levels and duration in excess of those indicated in the above table.  In instances of occupational hearing loss alleged to have occurred, either in whole or in part prior to January 1, 1981, an employer shall provide upon request by an affected employee whatever evidence is available to the employer of the date, duration, and intensities of noise to which the employee was subjected in employment.

[C81, §85B.5]

98 Acts, ch 1061, §11; 98 Acts, ch 1160, §3; 2009 Acts, ch 41, §263