
Most dogs are docked at between 3 and 5 days old.
They can only be docked any older if there is a problem with the tail being damaged.
I am quite sure the KC have recently added new ruling about docking older dogs,you could ask them or im sure some one on here could explain more,I would hate to give you the wrong answer,but docking is done by 5 days old.
Can i ask why you ask?
Carolyn