1.9 Additional information  1.10 Use of Electronic Procurement Tools (e-Procurement)  1.11 Public access to documents  2. TECHNICAL SPECIFICATIONS  2.1 General background By virtue of Point 11.1(e) of Annex 1 FR (Financial Regulation 2018/1046), ECDC reserves the option to  launch further negotiated procedure, with the contractor chosen as a result of the present call for tender,  for new services consisting in the repetition of similar services during the three years following the  signature of the original contract.  The successful tenderer(s) shall take the appropriate measures to be compliant with e-invoicing and  submit invoices through the system. The successful tenderer(s), whose tender was submitted as a joint  tender, may be required to acquire a Global Location Number (GLN), at no additional cost for ECDC.  For additional information on ECDC’s e-procurement tools, please refer to:  https://ecdc.europa.eu/en/about-us/procurement-and-grants.  In the general implementation of its activities and for the processing of tendering procedures in particular,  ECDC observes Council Regulation (EC) No. 1049/2001 of 30 May 2001 regarding public access to European  Parliament, Council and Commission documents.  The European Surveillance of Antimicrobial Consumption ESAC-Net is a Europe-wide network of national  surveillance systems providing independent reference data on antimicrobial consumption in Europe,  reported by all EU/EEA countries. It collects and analyses data from the community (primary care) and the  hospital sector. ESAC-Net will continuously make efforts improving collection of data e.g. from the hospital  sector and if available of relevant epidemiological data, and reporting on antimicrobial consumption  indicators.  ECDC provides public access to  ESAC-Net data at the 4th level (i.e., subgroup) of the  Anatomical  Therapeutic Chemical ( ATC) classification system, in its annual report and in an interactive database on  the ECDC website where country overviews summarising national results are also provided.  As per its mandate (Regulation 851/2004, Article 5), ECDC shall collect, collate, evaluate and disseminate  relevant scientific and technical epidemiological surveillance data, and maintain the database(s) for which  the funding in the EU Public Health programme ran out. Since 2011, ESAC-Net is the continuation of the  former ESAC project.  The ECDC strategic multi-annual programme and the ECDC long-term surveillance strategy inform on the  strategic objectives and targets for the period of 2021 ‒202 7, which will eventually determine the annual  work plans for ESAC-Net within the  ECDC Disease Programme on Antimicrobial Resistance and Healthcare- associated Infections (ARHAI). ESAC-Net will continue to report data from EU/EEA countries, both in the community and in the hospital  sector. EU/EEA countries are increasingly implementing actions aimed at controlling antimicrobial  resistance through rational use of antimicrobial agents, including campaigns to raise awareness of the  7 