How long can an entity continue to benefit from the continued consequence principle as a result of loss/sale of shares by the black participant?

The continued consequences is allowed for the same number of years the black shareholder held his/her/ provided the shares were held for a minimum period of 3 years, and the ownership transaction was legitimate, value was created in the hands of black people, and the entity improved its B-BBEE status level from date of entity to exist of the black shareholder.