An orderer that directly carries out a job involved in a specified undertaking must, when having persons engaged in work (limited to workers and to persons engaged in work, other than workers, who are engaged in work on a job at the same site as workers) associated with the contractor of this orderer (including the parties to all contracts for work subsequent to the one with that contractor, if the job is carried out based on multiple levels of contracts) use a construction, equipment, or raw material (hereinafter referred to as the "construction, equipment, or raw material") at the site where it carries out that job, take the necessary measures in respect of the relevant construction, equipment, or raw material to prevent industrial injuries.
If there are two or more orderers required to take the measures under the preceding paragraph in respect of the same construction, equipment, or raw material, owing to the jobs involved in the relevant undertaking being carried out based on multiple levels of contracts, the provisions of the preceding paragraph do not apply to the orderers of the subsequent contracts.
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