Kerbdog:
The law will be coming in shortly though were you will be required to show limited quantites stickers to the front and back of the vehicle if the limited quantites amount is more than 8 tonne. This is a black and white diamond.
Hi Kerbdog,
That came in on 01/01/2011 and only applies to vehicles of more than 12t mass, so for example it doesnât apply to vans and 7.5t vehicles.
For avoidance of doubt, the âblack and white diamondâ is a placard (250mm X 250mm) and looks like this:
Iâve seen foldable versions of this, and theyâre perfectly legal.
Kerbdog:
If going for airfreight then a Y letter is on the placard too. This came into effect in 2011 but becomes mandatory from June 2015.
Thatâs true, but the goods would need to be packaged as per IATAâs rules on LQs, which differ somewhat from ADR.
The placard containing the letter âYâ is used by road because the stuff is packaged other than in accordance with ADR. 
This allows those goods to be carried by road to airports etc for onward transmission by air
Kerbdog:
If you get a pull with aerosols that come under this LQ rule then you can expect a large fine if vehicle is not signed up correctly.
The VOSA sanctions document seems to say it a bit differently.
Kerbdog:
You do not need to have an ADR license to transport limited quantities of dangerous goods, yet you still need to display LQ placards front and rear if the LQâs are over 8 tonne.
⊠and the vehicles is more than 12t mass.
As an alternative to the LQ placards, itâs also perfectly legal to display the two orange plates.
(No ADR licence needed.)
Kerbdog:
As soon as you board a boat the trailer or vehicle comes under shipping regs (IMDG) which specifies that class placards need to be displayed on all 4 sides of the vehicle or trailer. It used to be that any amount of dangerous goods would need to be marked up with class placards but now there is this limited quantities process.
IMDG doesnât require four placards to be displayed on vehicles.
The four placard rule only applies to (ISO) containers and unaccompanied trailers.
The best way to remember IMDG marking rules is to first think about what it is thatâs going to be placardedâŠ
If the thing to be placarded has a windscreen, then it doesnât get placarded on the front.
If it doesnât have a windscreen, then it needs placards on all four sides.
Kerbdog:
like people have said, only tankers and certain other transport modes need to display the placards by road. Orange plates is plenty enough for ADR jouneys. ADR is only the dangerous goods rule for transporting by road. IMDG is by sea and IATA is the air regs.
Correct.
By road, placards are required for the following vehicles:
Tankers (3 plus any secondaries)
Bulk (3 plus any secondaries)
Class 1 (3 plus any secondaries)
Class 7 (3 plus any secondaries)
There is common confusion about markings for vehicles carrying ISO containers, but this confusion can be avoided by remembering that a vehicle and an ISO container are two separate things.
Once the rules for each have been considered separately, then simply imagine placing the container on the vehicle to discover the totality of the requirements.
Container marking rule (= this only applies to ISO containers)
When carrying any amount of dangerous goods, ISO Containers need 4 placards (plus any secondaries.)
When carrying an ISO container, a vehicle still follows the normal ADR rules for whether the orange plates are needed.
Itâs therefore perfectly possible (and legal) for any driver to carry a placarded ISO container and might not need orange plates or an ADR licence.
, most of the anti foreign crew on here usually only drive daily in a 100 mile radius with the aid of a sat nav, but they think they are a superior driver to the âjohnny 