This International Standard specifies rules for a certification scheme for continuous production of steel bars and wires for ordinary reinforcement of concrete structures in order to verify the conformity with requirements specified in product standards such as ISO 6935-1 and ISO 6935-2. A certification scheme for continuous production consists of the following stages: — suitability testing (see clause 4); — internal inspection by the producer (see clause 5); — inspection and supervision by an external body (see clause 6).