The new regulation won't affect existing customers because they're grandfathered in.
Новое регулирование не затронет существующих клиентов, так как они сохранены по старым правилам.
Definitions
Allowed to continue operating under an old set of rules or conditions, even after new rules or regulations have been put in place. This often applies to laws, contracts, or policies, where existing participants are exempt from new requirements.
