REACH will apply in stages, taking account of its complexity, the need for industry to adjust accordingly, and to allow a phased transition from the existing regulatory regime to the new regulatory regime under REACH.

The Regulation consists of 15 Titles covering the principal elements of REACH, within which specific provisions are contained. Half of the Titles will apply from the entry into force date, with the other half of the Titles applying from one year after entry into force.