Under 16.203-4, there are several locations, such as 16.203-4(a)(2), that state “the contracting officer may use ”AN” agency-prescribed clause instead of the clause” Under these circumstances, can I use ANY agency-prescribed clause or am I locked out of all clauses except my own agency clauses. I work for the DOD / Army. Further, I am very interested in FAR 16.203-4(d) Adjustments based on cost indexes. I feel this would be ideal for a long term food contract. That being said, there does not appear to be a clause “ready to use” under FAR 16.203-4(d). Apparently, you are instructed to make up your own clause. For example FAR 16.203-4(d)(d), at the end, states “no standard clause is prescribed. Therefore if I were to make my own clause, what number would it be?? Such as 52.216-X. Again I am DOD / Army, can I simply borrow the VA’s Clause as prescribed in VAAR (Veterans Affairs Acquisition Regulations) 816.203-4(e)(1) Clause 852.216-71?