Free Practice Questions for UNI 11554 Impianti a Gas

No. Certification under standard UNI 11554:2014 is voluntary. ACCREDIA and CIG (Comitato Italiano Gas) have issued formal statements confirming there is no statutory obligation or compulsory 'patentino' required to install or service gas systems. Legal authorization to operate an installation enterprise is governed strictly by the administrative requirements of DM 37/2008 (registration with the CCIAA Registro delle Imprese). UNI 11554 is a voluntary third-party qualification under Legge 4/2013 that certifies the verifiable competence of individual technical personnel.

Decreto Ministeriale 22 gennaio 2008, n. 37 regulates the administrative licensing of enterprises (imprese abilitate) under article 1 comma 2 lettera e) for gas systems. The DM 37/08 abilitazione is issued by the Camera di Commercio based on documentary review without an examination. In contrast, UNI 11554 is an assessed qualification for individuals working within those abilitate firms, verifying their specialized knowledge, skills, and practical safety competencies through an accredited examination under ISO/IEC 17024.

UNI 11554 defines three distinct profiles: Profilo A (Responsabile Tecnico), responsible for planning, technical coordination, testing, diagnostics, and signing statutory documentation; Profilo B (Installatore), responsible for assembling, modifying, installing, and commissioning gas pipework and appliances; and Profilo C (Manutentore), responsible for regular and extraordinary servicing, combustion checks, and identifying and resolving unsafe conditions.

Level 2 (2° livello) covers domestic and similar civil gas installations where each individual appliance has a nominal heat input not exceeding 35 kW. Level 1 (1° livello) covers civil-use installations with single appliances exceeding 35 kW (or multiple appliances in battery exceeding 35 kW total) supplied at operating pressures up to 0.5 bar. Certification for Level 1 automatically encompasses the competencies of Level 2.

The examination comprises three sequential parts, and each must be passed before the candidate proceeds to the next. UNI/PdR 11:2014 sets the common framework and each accredited body publishes its own scheme within it. Under the DEKRA scheme 0011 rev. 02 of 05/03/2026, the written test is 20 multiple-choice questions for a single profile (at least 30 for two profiles and 40 for three) in a maximum of 50 minutes, with a pass mark of 80% (16/20); the oral is 3 questions for one profile, 5 for two and 7 for three, lasting 15 to 25 minutes, scored at least 240/300 (80%); and the practical lasts up to 50 minutes and requires 70%. Other accredited bodies publish comparable but not identical figures.

There is no centralized national fee. Each ACCREDIA-accredited certification body (DEKRA, RINA, Kiwa Cermet, CEPAS or ICIM, for example) sets its own tariff and publishes it in its own tariffario, and training providers price course-plus-examination packages separately. Because the figures differ by body, by the number of profiles applied for and by year, check the current tariffario of the body you intend to apply to rather than relying on a national figure.

No. The official examination is administered solely in Italian by accredited certification bodies. OpenExamPrep provides an independent English-language 100-question multiple-choice study adaptation designed to assist international professionals and English-speaking technicians in mastering the technical standards (UNI 7129, UNI 11137, UNI 10389, DM 37/08). It preserves exact Italian regulatory terms but cannot replace the official Italian sitting, oral interview, or practical assessment.