| http://www.w3.org/ns/prov#value | - s and derrick types depending on when the equipment was ???placed in service.?????? This rulemaking action was initiated to address concerns that the term ???placed in service,??? as used in Section 4884, could be subject to interpretation that would require older cranes and derricks to meet current national consensus standards which, in some cases, is not practicable or feasible.??? The proposal
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