I am finally starting to understand this, maybe, please check my thinking:Historic military vehicle: ex-military vehicle which is now in civilian hands, regardless of year of manufacture (does or does not have to be 25 years old?). Historic registration: historic license plate. Historic plate or GVW plate can both be kept in vehicle while operating if vehicle had no original provisions for plate mount? I run a GVW plate now for $500 a year because I don't want it to be up to the discretion of a police officer of whether I can be driving my 925A2 or not. I would love to be saving that $, but I have heard and seen vehicles being towed away from what an officer believes is a non-official event, including Woodward Dream Cruise. Sure, he may be wrong, but he just spoiled your day/evening, and now you need to recover your vehicle, towing fees (for a 5 ton, ouch), court date to explain your way out of it, etc.... I do believe there is a provision in the historic plate usage that includes a "test drive" after repair work was done. I'll probably stay with my mud flap mounted $500 GVW plate, because I have put 7,000 miles on it in Michigan in the past 3 years, and never been pulled over even once yet. Would be cool to keep plate in truck only, but then I envision myself in a roadside disagreement with an officer of the difference between a historic military vehicle, and a historic registration (plate). I really need to fix my paragraph formatting. It is fine in draft, then jambs it all together when I hit "reply", sorry.