Alfa1M:
Shifting 33 euros of Screenwash, labelled up as cl3 Haz load UN1993 ,3 , ii, limited quantity for those intrigued .
Gross weight 15147.
So the word from the sender is nah mate it is LQ but very limited quantity. Can I have LQ placards please? No drive, we don’t issue them as not required.
Hi Alfa1M,
<Rolls sleeves up> There’s no such thing as “very limited quantity” 
It’s either LQ or it isn’t.
Alfa1M:
Walkers transport are pulling them out their yard, speak to 2 of their drivers, nah mate don’t need basic ADR or LQ markers, crack on.
They’re completely wrong about this.
A vehicle that has an authorised GVW >12t needs 2 LQ placards (250mm X 250mm,) when carrying >8t of LQs.
One placard to be displayed on the front of the vehicle, the other placard to be displayed on the rear of the vehicle. The carrier (your boss) should make provision for supplying LQ placards.
Very straightforward due to no mention of ferries or ISO containers in the OP. 
LQ Placard

Alfa1M:
Bosses word. If it ain’t going on a ferry, it ain’t getting marked up.
He’s wrong too! (See above.)
Alfa1M:
So , from what I read. I’ve done my bit to dig deeper , I’m assured I don’t need markings etc. I’m pretty sure anything over 8000kg needs marking whether domestic or not. Where do I stand from a legal P.O.V.
See above.
Alfa1M:
If i get a disclaimer signed by boss am I covered?
You don’t need a disclaimer because you’re not responsible for this.
If the boss says it’s OK then you’re good to go.
A prohibition awaits if caught though, then the boss will see breach of ADR 3.4.13(a) written on it, then you’ll be probably get parked up until the correct markings are displayed.
The carrier (your boss) should make provision for supplying LQ placards if he’d like to avoid a prohibition.
It’s the boss’ choice though. 
Alfa1M:
Or am I completely wrong and everyone else around me is correct?
No mate, I make it that you’re about right, but you’ve nothing to worry about. 