'no later than' vs 'not later than'?

Hi,

Is there any difference between ‘no later than’ and ‘not later than’?

My context is:

‘Another set of the above documents is to be airmailed to the buyer no/not later than 30 August 2011’.

Thank you very much.

… no later than.

but why? (though I also prefer ‘no later than’; I find more results for ‘not later than’ in the BNC.

Hi Beeesneees,

Could you shed some more light on this, please?

Thank you so much :slight_smile: