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extracted from the earth. This paragraph does not apply to coal or other mineral when it is delivered or shipped by the seller to the purchaser at a point outside Illinois so that the sale is exempt under the United States Constitution as a sale in interstate or foreign commerce. Nothing in this Section shall be construed to authorize a county to impose a tax upon the privilege of engaging in any business which under the Constitution of the United States may not be made the subject of taxation by this State. An ordinance or resolution imposing or discontinuing a tax hereunder or effecting a change in the rate thereof shall be adopted and a certified copy thereof filed with the Department on or before the first day of June, whereupon the Department shall proceed to administer and enforce this Section as of the first day of September next following such adoption and filing. Beginning January 1, 1992, an ordinance or resolution imposing or discontinuing the tax hereunder or effecting a change in the rate thereof shall be adopted and a certified copy thereof filed with the Department on or before the first day of July, whereupon the Department shall proceed to administer and enforce this Section as of the first day of October next following such adoption and filing. Beginning January 1, 1993, an ordinance or resolution imposing or discontinuing the tax hereunder or effecting a change in the rate thereof shall be adopted and a certified copy thereof filed with the Department on or before the first day of SB3019 Enrolled LRB104 20255 HLH 33706 b Public Act 104-0468