•   A certified copy needs to be stamped by a Commissioner of Oaths. 
•  Must contain full name, surname, date, designation and signature of the Commissioner of Oaths.
• Not be older than 3 months. 
• Commissioner of Oaths must site the original and then verify authenticity of the copy by stamping and dating it. 
• These people are trusted members of society who have been given authority to verify authenticity of copies of originals.
• A certified document must be certified from the original and may not be certified from another copy.
• A photocopy of a certified copy is not valid.
• Each document must be certified separately.

Source:  http://www.cipc.co.za/files/8214/7740/0978/Notice_54_of_2016_Objections.pdf