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From:
BOMA/Chicago's The Elevator Speech
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Two Years In With OSHA’s Rope Descent Systems Rule Change — What We’ve Learned | BOMA/Chicago's The Elevator Speech
https://bomaelevatorspeech.wordpress.com/2018/12/18/two-years-in-with-oshas-rope-descent-systems-rule-change-what-weve-learned/
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By Terry McDonald, S.E., P.E, Klein & Hoffman Across Chicagoland it’s a common sight to see window washers perched on the sides of the city’s buildings, sometime hundreds of feet above the stre…
