Consent to Subcontract II

All,

I have run into a situation where FAR 52.244-2 is included in a new award. We do not have an approved purchasing system, therefore we would need to request consent for subs with certain contract types. But, the DD254 we were issued on this new award already lists the subcontractors. Are we still required to provide formal paperwork to the CO requesting consent for these subs along with supporting documentation? It seems like they are already approved if we have the DD254 with the subcontractors already listed. Just want to double check. Thank you.