AIA (IPPC – Environmental Integrate Authorization)

The Legislative Decree n. 59/2005 provides for measures to prevent or, where this is not possible, to reduce emissions of specific activities in the air, water and land, including measures concerning waste, in order to achieve a high level of protection of the entire environment, leaving untouched the provisions of Directive 85/337/EEC on the assessment of the environment effects of specific  public and private projects, as well as other Community requirements.

The above-mentioned Decree regulates the release, renewal and review of Integrated Environmental Authorization (AIA) for the plants related to the following activities:

  • energy activities, such as combustion plants, oil refineries, coke ovens;
  • production and processing of metals;
  • mineral products industry, including installations for the manufacture of ceramic products by firing (roofing tiles, bricks, etc.).
  • chemical industry;
  • management of waste, such as incineration, disposal of dangerous waste and not;
  • other activities, such as industrial plants for the manufacture of paper and board, for the intensive rearing of poultry or pigs, etc..

TREE assists customers during the process of development of the Integrated Environmental Authorization through the following activities:


  • Audit devoted to the analysis of the company’s current authorization state and verification of specific regulatory requirements of the industry, such as authorizations for emissions into the atmosphere, authorization to discharge, waste management, etc..
  • Best Available Techniques (BAT): verification of the details contained in the Guidelines for the identification and the use of the Best Available Techniques specific to the sector, and to define the applicability of the same in the specific business context.
  • Drafting of all project works necessary for the preparation and delivery of the request of IEA to the competent authorities.Assistance during the approval process and relations with the competent bodies, including the participation of skilled staff in the preliminary meetings, in the conference services, and further opportunities for discussion with the relevant bodies.