A valid permit is essential, but it doesn't make you immune to a roadside stop. Enforcement is a real part of heavy transport, and knowing what inspectors look for is the best way to make every check a non-event.
During a stop, officers verify that your actual load matches the permit — dimensions, weight and axle loads — and that your escort arrangement and documents are all in order. Discrepancies between paper and reality are exactly what they're trained to spot.
The penalties for getting it wrong are steep: fines from a few hundred euros into the thousands, and for serious breaches the risk of impoundment. Set against those numbers, the discipline of double-checking documents before departure is cheap insurance.
The practical takeaway is simple. Keep every document with the vehicle, confirm the load matches the permit before you roll, and treat compliance as part of the job rather than an afterthought — it keeps your cargo, and your record, clean.
Bolacerta