certificate of secondary certificate of specialization certificate of sponsorship certificate of succession certificate of title certificate of vaccination certificate online certificate only certificate or diploma certificate policies certificate policy certificate program certificate programme certificate programs certificate provided certificate proving certificate referred certificate referred to in article certificate request certificate required certificate says certificate service certificate services certificate shall contain certificate should certificate showing certificate signed certificate signing certificate so certificate stating certificate status certificate store certificate system certificate to prove certificate type certificate used certificate valid certificate verification certificate was issued certificate when certificate will certificate will be issued certificated certificates certificates and awards certificates and diplomas certificates and documents certificates are also certificates are available certificates are issued certificates are not certificates are required certificates are valid certificates available certificates awarded certificates can certificates contact certificates have certificates issued certificates may certificates must certificates of achievement certificates of analysis certificates of appreciation certificates of attendance certificates of authenticity certificates of competency certificates of completion certificates of compliance certificates of conformity certificates of deposit certificates of excellence certificates of origin certificates of participation certificates of qualification certificates of quality certificates or diplomas certificates required certificates should certificates were issued certificates will certification certification according certification agency certification allows certification also certification and accreditation certification and qualification certification and quality certification and registration certification and testing certification and training certification application certification audit certification audits certification authorities certification authority certification available certification based