If any provision of this article, or the application of any
provision of this article, is held unconstitutional or otherwise invalid,
such occurrence shall not affect other provisions of this article,
or their application, that can be given effect without the unconstitutional
or invalid provision or its application. Each unconstitutional or
invalid provision, or application of such provision, is severable,
unless otherwise provided by this article.
This article shall be in full force and effect from and after
its passage and approval and publication as required by law; provided,
however, that the tax provided for herein shall take effect for all
sales on or after the first day of January, 2020. Copies of this article
shall be certified and sent to the Illinois Department of Revenue.