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certificate of registration supplemented by related sub-certificates of registration. Any person who is registered under the Retailers' Occupation Tax Act as of March 8, 1963, and who, during the 3-year period immediately prior to March 8, 1963, or during a continuous 3-year period part of which passed immediately before and the remainder of which passes immediately after March 8, 1963, has been so registered continuously and who is determined by the Department not to have been either delinquent or deficient in the payment of tax liability during that period under this Act or under any other State tax law or municipal or county tax ordinance or resolution under which the certificate of registration that is issued to the registrant under this Act will permit the registrant to engage in business without registering separately under such other law, ordinance or resolution, shall be considered to be a Prior Continuous Compliance taxpayer. Also any taxpayer who has, as verified by the Department, faithfully and continuously complied with the condition of his bond or other security under the provisions of this Act for a period of 3 consecutive years shall be considered to be a Prior Continuous Compliance taxpayer. Every Prior Continuous Compliance taxpayer shall be exempt from all requirements under this Act concerning the furnishing of a bond or other security as a condition precedent to his being authorized to engage in the business of selling tangible SB3019 Enrolled LRB104 20255 HLH 33706 b Public Act 104-0468