To find out about certification in your country, check with your government's food and drug administration / ministry, whatever body it is called. They should be able to point you to them. They are usually the same organization that issues ISO certifications and standards, e.g., SGS or your Kenya Bureau of Standards (KEB).
Hope this helps.
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Now the darkness only stays the night-time, in the morning it will fade away. -- George Harrison (All Things Must Pass)