FAR 4.1201(a) ties completion of ORCA representations to registration in CCR. FAR 52-204-7, Central Contractor Registration, generally must be included in Part 12 solicitations. The instruction in FAR 4.1104 refers back to FAR 4.1102(a), which doesn't include any exception for commercial items contracts, so the clause is required in commercial item solicitations unless one of the exceptions in 4.1102(a) applies. If FAR 52.204-7 is required, then any prospective awardee would need to register in CCR prior to award, and the prospective awardee would at the same time have to complete the ORCA representations, per FAR 4.1201(a). So the prospective contractor on most Part 12 procurements would have to register in CCR and complete ORCA. That doesn't mean that an offeror has to be registered in CCR or have completed ORCA at the time it submits a proposal. But if the offeror hasn't completed the ORCA representations at the time it submits its proposal, it would have to fill out paragraphs © through (m) of FAR 52.212-3.