Only when a product has been certified to an applicable standard is it entitled to bear the appropriate CSA International Certification mark. Certification marks appear on product packaging and on, or adhered to, the product itself, depending on the individual requirements of each applicable standard.nly when a product has been certified to an applicable standard is it entitled to bear the appropriate CSA International Certification mark. Certification marks appear on product packaging and on, or adhered to, the product itself, depending on the individual requirements of each applicable standard.