BTA Code

FVA Not for points English to Czech Bus/Financial Finance (general)

It is taken from Barclays bank personal customer profile report and is placed under ESD details along with other items.
It is as follows:
ESD details
BTA Code
BTA Sub Category Code
Tax ID Number
ESD preference
ESD exclusion
Third country Tax Residence Cerfiticate
I do not know what BTA stands for?
Could it be translated as BTA kód??
Thanks