Cider Industry Deserves Equal Regulation Act or the CIDER Act - Amends the Internal Revenue to revise the definition of "hard cider," for purposes of the excise tax on distilled spirits, wines, and beer, to mean any wine: (1) the carbonation level of which does not exceed 6.4 grams per liter; (2) which is derived primarily from apples, apple juice concentrate and water, pears, or pear juice concentrate and water; (3) which contains no fruit product or fruit flavoring other than apple or pear; and (4) which contains at least one-half of 1% and less than 8.5% alcohol by volume.