Period for which category is in effect
Subject to subparagraph (K), a category of medical devices established under clause (i) or (ii) shall be in effect for a period of at least 2 years, but not more than 3 years, that begins—
(I)#
in the case of a category established under clause (i), on the first date on which payment was made under this paragraph for any device described by such category (including payments made during the period before April 1, 2001 ); and
(II)#
in the case of any other category, on the first date on which payment is made under this paragraph for any medical device that is described by such category.