What is “Real total mass”?
A1. Real total mass is the weight of a vehicle including the load, if any, which is on

C (Trucks) You firstly must establish the unladen weight of the truck – the unladen weight is stated on the vehicle’s CRW (Certificate of Commercial Vehicle Roadworthiness) under U.L.W. (Unladen Weight).


Vehicle type - For permit issuing purposes a ‘Vehicle’ is defined as the complete combination that the permit will be issued for. Different combinations of units (i.e. vehicle) will require a different permit.

Unit - For permit issuing purposes a ‘Unit’ is defined as something that can be used singularly or in conjunction with other Units to make an overall vehicle, e.g. a prime mover or a trailer.

GVM - (Gross Vehicle Mass) – in the industry the term vehicle is used here but it relates to the term ‘unit’ as stated above. The GVM is the legal maximum load limit allowed for that unit (as stated on the Certificate of Loading).
https://hpmvpermits.nzta.govt.nz/application/help/hpmv


In order to establish the unladen weight of the tractor unit and
the trailer together, you must get both weighed together at a
weighbridge. You will receive a certificate or receipt from the
weighbridge, which you must bring to the driving test with you

Q4. Why do I have to use IBC’s if I have to load category C & CE?
A4. In order for the Driver Tester to determine that the vehicle meets the
requirements of real total mass, a universal manner of displaying real total mass is
required. The use of IBC’s is seen to be the most identifiable method. The use of,
say, a concrete slab, would not be easily identifiable in terms of mass. IBC’s are
readily available and are relatively inexpensive, or could be borrowed, and do not
require the test applicant to get certification from a weighbridge, for example.

http://www.rsa.ie/Documents/Learner Drivers/Third Directive/...




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Note added at 16 mins (2016-06-14 14:32:08 GMT)
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Maximum authorised mass
Maximum authorised mass (MAM) means the weight of a vehicle or trailer including the maximum load that can be carried safely when it’s being used on the road.

This is also known as gross vehicle weight (GVW) or permissible maximum weight.

It will be listed in the owner’s manual and is normally shown on a plate or sticker fitted to the vehicle.

The plate or sticker may also show a gross train weight (GTW), also sometimes called gross combination weight (GCW). This is the total weight of the tractor unit plus trailer plus load.

https://www.gov.uk/vehicle-weights-explained

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Note added at 17 mins (2016-06-14 14:32:51 GMT)
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MAM certificate, GVW certificate

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Note added at 20 mins (2016-06-14 14:35:35 GMT)
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https://en.wikipedia.org/wiki/Gross_vehicle_weight_rating

ha csak egy sima hatósági bizonyítványról lenne szó, akkor jó lenne a GVW certificate, de a te kérdésedben az aktuális rakományra vonatkozik a "jármű-tömegbizonylat", tehát inkább a GVW Loading certificate (kell bele a loading, merthogy az aktuálisra vonatkozik) vagy valami, a kettőből összegyúrt kéne.

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Note added at 1 day7 hrs (2016-06-15 21:16:12 GMT) Post-grading
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Köszönöm!