The main reason for changing the definition of STS seattle seahawks helmet camo full printing shirt in the 1983 standard was to simplify the original calculation and address the concerns of employers
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Accordingly, in the final rule, at paragraph 1904.10, employers are permitted, if they choose, to retest the employee to confirm or disprove that an STS reflected on the first audiogram was attributable seattle seahawks helmet camo full printing shirt to a cold or some other extraneous factor and was not persistent. If the employer elects to retest, the employer need not record the case until the retest is completed. If the retest confirms the hearing loss results, the case must be recorded within 7 calendar days. If the retest refutes the original test, the case is not recordable, and the employer does not have to take further action for OSHA recordkeeping purposes. The 30 day limit in the final recordkeeping rule is consistent with the 30 day retest provision of § 1910.95, which allows the employer to obtain a
retest within 30 days and consider the results of the retest as the annual audiogram if the STS recorded on the first test is determined not to persist. As is the case for many OSHA rules, the 1981 Noise standard was challenged in the courts, which stayed several provisions. In 1983, OSHA revised the hearing conservation amendment to revoke many of the provisions stayed by the court, lift an administrative stay implemented by OSHA, and make technical corrections . One of those provisions involved the definition of STS, which was renamed a “standard” rather than “significant” threshold shift to help differentiate the two separate methods used to calculate the STS in the 1981 and 1983 rules. Although OSHA changed the calculation method used to establish an STS in 1983, the role and importance of the STS concept in the context of a hearing conservation program was unchanged.