There’s one of those mandatory posters at my workplace with the OSHA rules about hearing protection programs- it lays out in great detail what the minimum thresholds are, what kind of testing the employer has to offer, etc. etc. (If you want to read the whole thing check out this link: http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9735 )
At the very bottom, there is this exemption:
1910.95(o)
“Exemptions.” Paragraphs © through (n) of this section shall not apply to employers engaged in oil and gas well drilling and servicing operations.
What’s so special about the oil business?