Subject to contracting officer approval if the Pre-Award AS has no warrant, the Pre-Award AS shall insert the clause at DLAD 52.211-9012 in solicitations and contracts when there is potential for obsolete components or materials, either based on specific historical data, or when a firm requests this clause due to possible difficulties with suppliers. If the Pre-Award AS becomes aware of an anticipated delay in award, see 11.401-90(b)(2)(i). If the Post-Award AS becomes aware of an anticipated delay in delivery, see 11.401-90(c)(2)(i). See 11.401-92 regarding potential alternative sourcing strategies.