Let's face it, as long as our driving licence has our face on it, we're don't really care what else is on it.
We know that on the front our name, address, date of birth and signature are all present and on the back, it is just a load of numbers, letters and symbols.
Quite frankly, we couldn't care less what they mean, who are they even for?
Well - the answer - they are for you. Those codes could land you with a fine and penalty points if you don't know what they mean.
Section 12 of the driver's licence is all about 'information codes' which relate to the rules and regulations about what vehicles you can drive, and how.
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The most common is '01', which relates to eyesight.
Having '01' on your license means that you have informed that you need glasses or contact lenses to drive - and must wear them EVERY trip.
If you're stopped by the police and found not to be wearing either than you could be landed with a £100 on-the-spot fine.
But there is a severe warning, those fines are rare and it's more likely to end up in court where you can be charged up to 50 percent of your weekly salary (capped at £1,000).
It's crucial that you update the DVLA on any changes to your eyesight, and this includes having laser surgery.
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Laura Newton, a motoring law expert at Rothera Sharp, said: "Failing to update something can be an offence but that's just a financial penalty.
"If you are not driving in accordance with the categories it's like not having L-plates on your car as a learner.
"That is when it becomes an endorsable offence."
Other offences include: 02 - hearing or communication aid; 40 - modified steering; 101 - not for hire or reward; 105 - vehicle not more than 5.5 metres long; 106 - restricted to automatic vehicles; 10-7 - not more than 8,250kg; 111 - limited to 16 passenger seats; 115 -organ donor; 122 - valid on successful completion (basic moped training).
The other sections on the back of your licence, numbered 9, 10 and 11, relate to the type of vehicles you're allowed to drive, and for how long that is valid for.
It's also important to make sure that your photo is as up-to-date as it can be. When one LAD lost his driving licence he opted to have his reprinted using his passport photo - the only problem was that it showed him as an 11-year-old. No clubbing nights for him.
There are so many hidden laws for driving on the road, some so minor that is easy to forget about them, but there are others that, should you catch a copper on a bad day, it can land you in plenty of trouble.
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