Assignments of Chart of accounts

Hi,

I have some doubts in types of chart of accounts. we have three types of chart of accounts which includes.

Operative chart of accounts

Country chart of accounts

Group chart of accounts

Group chart of accounts assigned in the TC OB13.

As well as remaining two chart of accounts (Operative and Country chart of accounts) where we can assigned.

How to determine in the company code?

If anybody can elaborate this matter.

Thanks

Venkat