Most African countries implement "pre-shipment conformity assessment," and the deliverable is uniformly called COC (Certificate of Conformity), but the system names and competent authorities differ by country: Kenya calls it PVoC (KEBS), Tanzania calls it PVoC (TBS), Nigeria calls it SONCAP (SON, issuing PC and SC), Egypt calls it COC (GOEIC), and Zimbabwe calls it CBCA (SAZ). What they have in common is: handled before shipment, certificates issued per shipment, customs clearance impossible without a certificate, and certificates from each country are not mutually recognized.
When shipping integrated consignments to multiple African countries, the most cost-effective approach is to unify the test report (ISO 17025 laboratory), then separately apply to each country's authorized agency for certificates.