Expenditures chargeable to Special Tools include all elements of cost commencing with tool design through primary tryout (also referred to as “runoff”). Normally, these costs would include design, fabrication by a unit, and/or purchases from outside sources as well as associated installation and tryout costs necessary to produce a dimensionally correct part. A dimensionally correct part is defined as a part that is produced to the quality specifications, which have been outlined and formally documented by the engineer. However, certain tool costs included as engineering and development expense, as defined in APM Section 83 - Engineering and Development Expense, should not be classified as Special Tools. Also, certain costs associated with production engineering activities such as “productionizing” should not be classified as Special Tool costs. “Productionizing” refers to the engineering and labor efforts necessary