Ref the 40/60 nm thing - they don't need exemptions, they need an approval. The 40 nm limitation on Approach radar disappeared years ago with units required to nominate their own area of operations and justify it - together with providing the usual safety assurances, naturally.
The reason many units stick to around 40nm is that it matches the DOC of the frequencies they already have. They could only go further if they were able extend the DOC which would, probably, entail having new frequencies (if they are available) and hence incur a cost for little operational benefit.
Spitoon dropped the hint but nobody noticed!