PCSing to Alaska. I know we need passports to go thru Canada. I was told I need a memo from CO authorizing the drive. Anyone heard of this?

When PCS'ed to Alaska I simply told sato that I was driving. My family did need passports, but other than that there was nothing else required. I have never heard of a CO authorizing a particular type of travel.

From what I understand of the modern Army - you need to have authorization to drive more than 10 miles from post. (Mild exaggeration.) Check with your 1SG or CSM to see what the policy is.

Yes. You will need to go online and develop a driving plan. Your per day driving will be limited to a few hundred miles. You will need to register this trip on I think it is called "trip Tix". You will need a vehicle inspection to include a license and proof of insurance and lastly the permission of your garrison. Drives over a certain distance from your installation require a permit from the Command team. You will also need to notify the receiving unit of your travel plans. While driving your are usually on duty as it is part of your PCS.