Final answer:
The quantity of ammunition that civilian marksmanship clubs can transport with a commanding officer's authorization is governed by specific regulations. Current details should be sought directly from the Civilian Marksmanship Program or relevant military authority.
Step-by-step explanation:
The question pertains to the policies or regulations concerning the transport of ammunition by civilian marksmanship clubs affiliated with the Director of Civilian Marksmanship. The specific detail about the quantity of .30-06 and .30 caliber ammunition that can be transported CONUS (which stands for Continental United States) with the commanding officer's authorization for such clubs most likely falls under a governmental policy or military regulation. As of my knowledge cutoff date in March 2023, this specific detail isn't readily available in open sources, and thus I recommend referring directly to the latest guidelines set forth by the Civilian Marksmanship Program (CMP) or the relevant military authority for the most accurate information.