Which statement about the CIN's third piece is correct?

Which statement about the CIN's third piece is correct?

• A. The third piece is the sequence identifier assigned by owning command
• B. The CIN has four pieces
• C. The first piece is the defense group
• D. The CIN is unrelated to course identification

Answer: (A)

The way a Course Identification Number is structured determines what each segment represents, and the third segment serves as the sequence identifier assigned by the owning command. This sequence number differentiates each specific offering or revision of a course under the same CIN, allowing accurate tracking in scheduling, records, and data systems. The CIN is inherently tied to identifying courses, so saying it’s unrelated to course identification would be incorrect. Saying the first piece represents a defense group or that there are a fixed number of pieces would misstate how the CIN is organized; the key point is that the third segment is the sequence identifier controlled by the owning command to distinguish each course instance.

The way a Course Identification Number is structured determines what each segment represents, and the third segment serves as the sequence identifier assigned by the owning command. This sequence number differentiates each specific offering or revision of a course under the same CIN, allowing accurate tracking in scheduling, records, and data systems. The CIN is inherently tied to identifying courses, so saying it’s unrelated to course identification would be incorrect. Saying the first piece represents a defense group or that there are a fixed number of pieces would misstate how the CIN is organized; the key point is that the third segment is the sequence identifier controlled by the owning command to distinguish each course instance.