The Contracting Parties taking into account the proposals from the International Commission
shall set emission limits applicable to individual industrial sectors or industries in terms of pollution loads,
and concentrations and based in the best possible way on low- and non-waste technologies at source. Where
hazardous substances are discharged, the emission limits shall be based on the best available techniques for
the abatement at source and/or for waste water purification. For municipal waste water, emission limits shall
be based on the application of at least biological or an equivalent level of treatment