What is the difference between a B-BBEE affidavit and a B-BBEE certificate?

A B-BBEE affidavit serves the same purpose as a B-BBEE certificate. The only difference is that a B-BBEE affidavit is used for companies with an annual turnover of less than R10m, whereas a B-BBEE certificate is used for companies with an annual turnover of more than R10m.