I1S. 321 in force at 12.1.2010 for specified purposes by S.I. 2009/3345, art. 2, Sch. para. 27

I2S. 321 in force at 1.4.2010 for specified purposes by S.I. 2010/298, art. 2, Sch. para. 12

I3S. 321 in force at 1.4.2010 for specified purposes for W. by S.I. 2010/630, art. 3(b) (with arts. 8, 12)

I4S. 321 in force at 1.1.2011 for specified purposes by S.I. 2010/298, art. 2, Sch. para. 14

I5S. 321 in force at 1.4.2011 for specified purposes by S.I. 2011/556, art. 2(2)(o) (with art. 2(3))

I6S. 321 in force at 6.4.2011 for specified purposes by S.I. 2011/556, art. 3(2)(b)

I7S. 321 in force at 12.12.2014 in so far as not already in force by S.I. 2014/3088, art. 2(c)