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Mode of Computing Contents of Cask or Package. - Every fractional part of a proof liter equal to or greater than a half liter in a cask or package containing more than one liter shall be taxed as a liter, and any smaller fractional part shall be exempt; but any package of spirits, the total content of which are less than a proof liter, shall be taxed as one liter.
CHAPTER II - EXEMPTION OR CONDITIONAL TAX-FREE REMOVAL OF CERTAIN ARTICLES
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