Some contracting officers require we submit CDRLs with our requirements. Others do not.
Is the form optional or has it being discontinued?
As with many acquisition questions, the answer is a resounding "It Depends." In this case, it depends upon the method of contracting being employed.
Simplified Acquisition is governed by FAR Part 13 (DFARS 213) and the DD Form 1423 is not required.
Sealed Bidding is governed by FAR Part 14 (DFARS 214) and the DD Form 1423 is not required.
Negotiations is governed by FAR Part 15 (DFARS 215) and DFARS Part 215.470 (included below) requires that the DD Form 1423 be included (in solicitations for Defense Contracts) when data are required to be delivered.
215.470 Estimated data prices.
(a) DoD requires estimates of the prices of data in order to evaluate the cost to the Government of data items in terms of their management, product, or engineering value.
(b) When data are required to be delivered under a contract, include DD Form 1423, Contract Data Requirements List, in the solicitation. See PGI 215.470(b) for guidance on the use of DD Form 1423.
(c) The contracting officer shall ensure that the contract does not include a requirement for data that the contractor has delivered or is obligated to deliver to the Government under another contract or subcontract, and that the successful offeror identifies any such data required by the solicitation. However, where duplicate data are desired, the contract price shall include the costs of duplication, but not of preparation, of such data.