Skip to content
International Coin Certification Service (ICCS) ICCS is a Canadian coin certification company located in Toronto, Ontario. ICCS certification consists of grading, authentication, grade qualification, variety attribution, and other determinations. ICCS grades most world coins but is particularly known for grading Canadian dollars. ICCS encases coins in an inert (Polyethylene Terephthalate) envelope and is then sealed in a plastic flip. The ICCS grading certificate is sealed in the other side of the flip.