How to restrict address line char in address form?

Hi,

      We have got two business groups (US & Canada) in the system. Our client wants to put a restriction in HRMS Manager -> Enter and Maintain -> Address -> Address Lines (1,2,3) (30 Char for US, 20 Char for Canada). I tried to add a value set to 'Person Address Information' and it is working fine in Self Service.

      But in PUI, it is not working. So, I tried to achieve the requirement by form personalization - pop up error message when saving the address lines more than 30 char). It works well for US business group, but for Canada, the personalization is not working.