1.
The authorisation referred to in Article 89(5) shall be granted only to persons who satisfy all of the following conditions:
(a)
they are established in the customs territory of the Union;
(b)
they fulfil the criteria laid down in point (a) of Article 39;
(c)
they are regular users of the customs procedures involved or operators of temporary storage facilities or they fulfil the criteria laid down in point (d) of Article 39.
2. Where a comprehensive guarantee is to be provided for customs debts and other charges which may be incurred, an economic operator may be authorised to use a comprehensive guarantee with a reduced amount or to have a guarantee waiver, provided that he or she fulfils the criteria laid down in points (b) and (c) of Article 39.
3. Where a comprehensive guarantee is to be provided for customs debts and other charges which have been incurred, an authorised economic operator for customs simplification shall, upon application, be authorised to use a comprehensive guarantee with a reduced amount.
4. The comprehensive guarantee with a reduced amount referred to in paragraph 3 shall be equivalent to the provision of a guarantee.