ATC 7 is Economic Retention (ER) materiel defined as...

• A. Excess materiel with EMV greater than $100
• B. Not Carried materiel established for demand history recording
• C. Economic Retention (ER) materiel with EMV less than or equal to $100
• D. Substitute items for ATC 1 through 5 stock records

Answer: (C)

Economic Retention is the stock category used for low-value items kept on hand to meet potential future demand without triggering frequent purchasing. The defining factor is the Expected Monetary Value; if the EMV is not more than $100, the item qualifies as Economic Retention, meaning it’s economical to hold rather than place a new order each time it’s needed. This approach balances the cost of carrying small-value items against the savings from avoiding repeated procurement. The other options describe different stock categories or criteria that don’t match ER: items with higher EMV aren’t ER, Not Carried materiel is tied to demand-history recording, and substitute items relate to stock records rather than ER criteria.