AMS under AIA and AUA permits: operator obligations for emissions monitoring in Italy

In Italy, the operator of a plant equipped with an Automated Measuring System (AMS) for emissions has to meet obligations at two levels: the general legislation, i.e. Legislative Decree 152/2006 (D.Lgs. 152/2006) and the related technical standards, and the conditions of its own permit, which for industrial plants is almost always an Integrated Environmental Permit (AIA) or a Single Environmental Permit (AUA).

In this article we look at how the two permitting regimes deal with continuous monitoring and what the operator has to do in practice.

AIA or AUA: which permit applies to your plant

Integrated Environmental Permit (AIA)

The AIA is governed by Title III-bis of Part Two of Legislative Decree 152/2006 and implements the Industrial Emissions Directive 2010/75/EU (IED) in Italy. It covers installations carrying out the activities listed in Annex VIII to Part Two: large combustion plants, refineries, steelworks, cement plants, chemical plants, waste management and other large-scale industrial activities.

For these installations the AIA replaces the air emissions permit of Part Five: emission limit values, monitoring requirements and reporting obligations are set directly in the AIA.

Single Environmental Permit (AUA)

The AUA was introduced by Presidential Decree 59/2013 for SMEs and for plants not subject to an AIA. It brings several environmental permits together in a single act, including the wastewater discharge permit and the air emissions permit under Article 269 of Legislative Decree 152/2006. The application is filed with the local one-stop shop for business (SUAP) and the permit is valid for 15 years.

For emissions to air, the AUA therefore applies the rules of Part Five of Legislative Decree 152/2006, which we described in our guide to Legislative Decree 152/2006 Part Five.

When an AMS is required

Neither the AIA nor the AUA requires an AMS automatically: each permit specifies which stacks and pollutants must be monitored continuously rather than through periodic measurements. In general, continuous monitoring is required by:

The first step is therefore to read your permit carefully: it lists the parameters to be measured continuously, the emission limit values, the averaging periods and the standardisation conditions (reference oxygen, dry gas, standard conditions).

AMS requirements in an AIA

In an AIA, monitoring requirements are usually set out in the Monitoring and Control Plan (PMC), which is an integral part of the permit. The PMC specifies:

The operator must submit monitoring data periodically, usually with an annual report, and promptly inform the competent authority of anomalies, failures or exceedances with a significant environmental impact. The AIA is also reconsidered when new BAT conclusions are published: at that point the AMS requirements may change, for example with new parameters or lower limits.

AMS requirements in an AUA

In an AUA, the emissions section sets limit values and conditions under Article 269 and the Annexes to Part Five. Where an AMS is required, the reference for its management is Annex VI to Part Five of Legislative Decree 152/2006, supplemented by any regional guidance and by the specific conditions set by the competent authority.

AUA permits are often less detailed than an AIA, so the AMS management manual, agreed with the competent authority, becomes the key document defining how data are acquired, validated, stored and reported.

Common operator obligations

Whether the plant holds an AIA or an AUA, running a compliant AMS in practice means:

Breaches of permit conditions, including failure to report data, are penalised under Legislative Decree 152/2006 and, in the most serious cases, may lead to a formal warning or suspension of the activity.

Being ready for inspections

ARPA inspections, whether scheduled or unannounced, check both compliance with limit values and the correct management of the system: condition of the instruments, results of QAL2, AST and QAL3, consistency between the DAHS and the management manual, completeness of the logs. Many non-compliances do not come from actual exceedances, but from incomplete documentation or DAHS settings that do not match the permit conditions.

How APS Automazione can help

APS Automazione designs, installs and maintains AMS compliant with AIA and AUA permit conditions, including systems installed by other suppliers. With our CEMS check-up we review instruments, QAL3, DAHS and documentation against your permit and Annex VI, and give you an action plan. Explore all our CEMS services or our DAHS software, with built-in QAL2 and QAL3.