A lot of TJs came stock with 235/75R15 and 30 x 9.5 R15 tires.
Those are great sizes for on and off road use. The 30 x 9.5 R15 is especially good.
I think your government has mistakenly omitted these stock tire sizes. 30 x 9.5 R15 is the most common tire size for stock TJs I've seen.
If you can show them that many (probably most) TJs came stock with 30 x 9.5 R15, then maybe they'll let you use that size.
Here is a thread about 30 x 9.5 R15 tires. http://www.jeepforum.com/forum/f15/l...zj-tj-1523888/