As of 1st January 2008, new European Standards for Tarmac have come into force.

Whilst the mixtures have not changed, the descriptions have as detailed below.

Tarmac Concrete Mixtures conforming to EN13108 Part 1
Previous Description	Description as of 1st January 2008
0/6mm medium graded surface course	AC 6 med surf 160/220
0/6mm dense surface course	AC 6 dense surf 100/150
0/10mm close graded surface course	AC10 close surf 100/150
0/14mm close graded surface course	AC 14 close surf 100/150
0/20mm dense binder course	AC 20 dense surf 100/150
0/20 heavy duty binder course	AC 20 HDM bin 40/60
0/20mm high modulus binder course	AC 20 HMB bin 30/45
0/32mm dense base/binder course	AC 32 dense base/bin 100/150
0/32mm heavy duty base/binder course	AC32 HDM base/bin 40/60
0/32mm high modulus base/binder course	AC 32 HMB base/bin 30/45
10mm EME2	AC 10 EME2 base/bin 15/25
14mm EME2	AC14 EME2 base/bin 15/25
20mm EME2	AC 20 EME2 base/bin 15/25