Since 1996 ABL is recorded at the builder national board for the S18 categories (metallic carpentries), S4 (lifting plants and equipment, transport) and G9 (heating plants and cogeneration).
Furthermore, ABL obtained the certification n° IQ-0702-13, assigned by DASA REGISTER on 17/02/2002 in confirmation of the possession of the requirements required by the rules EN ISO 9001 (2000) on matters of management system qualities.