The decree concerns the content and the conditions of the annual declaration of substance at nanoscale. It specifies information to declare:
- the identity of the registrant,
- the identity of the substance,
- the description of the substance (shape, size,…),
- quantity,
- use,
- the identity of users.
A complement of definition of substance at nanoscale is precised in this decree: “the minimum proportion (R.523-12 CDE) of particles with one or more external dimensions is in the size range 1 nm - 100 nm is fixed at 50 % of the size distribution in number”.