Texas form VTR-135 makes no mention of the 25 year thing.
What law is it that you are concerned about (the 25 year thing).
Texas Transportation Code § 504.502. Certain Exhibition Vehicles
So the general rule is "a person may not register a former military vehicle designated for off-highway use, with or without design alterations, for operation on a public highway"
One of the exceptions is the "25 year old thing" I was referring to, subsection (c) of Sec. 502.141. This subsection sends you to 504.502, which says:
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(a) The department shall issue specialty license plates for a passenger car, truck, motorcycle, bus, or former military vehicle that:
(1) is at least 25 years old, if the vehicle is a passenger car, truck, motorcycle, or bus;
(2) is a collector's item;
(3) is used exclusively for exhibitions, club activities, parades, and other functions of public interest and is not used for regular transportation; and
(4) does not carry advertising.
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I'm thinking they don't interpret the mk23 to be designated for off-hwy use, at least maybe not 100% off-hwyand maybe that's why they issue regular plates. We shall see what they think when I show up with all the paperwork. I'll keep this thread posted.