17Messages to appear in rotation

17 Messages to appear in rotation (1) Each warning message and, if required by this Part, the corresponding explanatory message, must be printed in rotation on retail packages of tobacco, so that, during the period of 12 months beginning on 1 January in each year, each message appears as nearly as possible on an equal number of retail packages of each kind of tobacco. (2) Tobacco is of different kinds for subregulation (1) if: (a) it is sold under different brand names; or (b) it is sold under one brand name but is distinguished in one or more of the following ways: (i) containing or not containing menthol; (ii) being otherwise differently flavoured; (iii) having different contents of tar; (iv) allegedly differing in ‘mildness’; (v) having or not having filter tips or cork tips; (vi) being sold in retail packages containing different numbers of pieces; (vii) being of different length or mass.