All discharges of non-domestic wastewater into the public sewerage system must be authorised in advance by the mayor or, where responsibility for sewerage at the point of discharge has been transferred to a public institution for inter-municipal cooperation or to a mixed syndicate, by the president of the public institution or mixed syndicate, after receiving an opinion from the public body responsible for wastewater transport and treatment and for downstream sludge treatment, if this body is different. The latter has two months in which to formulate an opinion, extended by one month if it requests additional information. If no opinion is given within this period, it is deemed to be favourable.
If there is no response to the application for authorisation more than four months after the date of receipt of the application, it will be deemed to have been rejected.
The authorisation provided for in the first paragraph sets out, in particular, its duration, the characteristics that the wastewater must have in order to be discharged and the conditions for monitoring the discharge.
Any subsequent change in the nature or quantity of wastewater discharged into the network is authorised under the same conditions as those set out in the first paragraph.
Authorisation may be subject to a contribution from the discharger towards the capital costs of receiving the wastewater.
This contribution is in addition, where applicable, to the charges mentioned inarticle L. 2224-12-2 of the General Local Authorities Code and to any sums owed by the interested parties under articles L. 1331-2, L. 1331-3, L. 1331-6, L. 1331-7 and L. 1331-8 of this Code.