Qualification in category OG 11
For a work to be considered in category OG11, it must be jointly composed of the three categories of specialised works identified in the description and these specialised works must reach a minimum percentage with respect to the overall amount of the work.
- The minimum percentage for category OS3 is at least 10% and at least 25% each for categories OS28 and OS30.
- Certificates of works with these characteristics must indicate the total amount of the works carried out in the abovementioned general category, as well as the breakdown of this amount into the individual specialist categories.
- To obtain qualification in category OG11, it is not permitted to use certificates of works issued exclusively in the individual specialisations OS3, OS28 and OS30.
With regard to the leading works, the company is therefore required to prove that it has carried out one job in OS3 equal to 40% of 40% of the required OG11 classification and one job in OS28 and OS30 respectively equal to 40% of 70% of the same classification, or 2 jobs equal to 55% of the required percentages for each of the specialist categories (40% or 70%), or 3 jobs equal to 65% of the same percentages. A company qualified in category OG 11 can carry out work in each of the OS3, OS28 and OS30 categories for the classification corresponding to the one held. With (Italian) Ministerial Decree 248/2016, the OG11 category has become a highly specialised category (SIOSS): it cannot be subject to pooling pursuant to Article 89 of (Italian) Legislative Decree 50/2016 and must necessarily be possessed for execution purposes (cannot be fully subcontracted).