1. (1) Each January, April, July, and October, the department shall classify all products based on the criteria set forth in ARM 42.11.405. Changes in product classification are effective as follows:

   1. (a) January reviews are effective May 1;
   2. (b) April reviews are effective August 1;
   3. (c) July reviews are effective November 1; and
   4. (d) October reviews are effective February 1.

Authorizing statute(s): 16-1-103, 16-1-303, MCA

Implementing statute(s): 16-1-103, 16-1-302, MCA

History: NEW, 1988 MAR p. 87, Eff. 1/15/88; AMD, 1990 MAR p. 1839, Eff. 9/28/90; AMD, 2001 MAR p. 348, Eff. 2/23/01; AMD, 2003 MAR p. 2899, Eff. 12/25/03; AMD, 2007 MAR p. 478, Eff. 4/13/07; AMD, 2011 MAR p. 451, Eff. 3/25/11; AMD, 2015 MAR p. 2093, Eff. 11/26/15; AMD, 2020 MAR p. 1745, Eff. 9/26/20.