Each bidder, contractor, and subcontractor seeking to perform work on a State-funded construction project shall certify in its bid submission that it pays employee health care expenses by completing and submitting the following certification form: Addition of New Subcontractors. The certification required pursuant to §A of this regulation shall be submitted prior to the addition of a new subcontractor on existing contracts. Supporting Documentation. A procurement officer may require a bidder or subcontractor to submit records to the procurement officer that are sufficient to support the bidder or subcontractor’s certification, including a certificate of insurance or a valid contract.