Version of October 2020  EXECUTIVE DIRECTOR OFFICE  1. Submission of tenders.  Dear Madam/Sir,  The European Food Safety Authority (EFSA) (referred to below as the  contracting authority )  is planning to award the contract(s) resulting from this procurement procedure. The  procurement documents consist of the contract notice, this invitation letter, the draft  contract and tender specifications with their respective annexes. All documents are  available in TED e-Tendering 1  only.  Economic operators interested in this contract are invited to submit a tender in one of the  official languages of the European Union. Tenders must be submitted exclusively via the electronic submission system (e- Submission) 2  accessible from the corresponding call for tender in TED e-Tendering or the  Funding and Tenders Opportunities portal (F&T portal) 3 . Tenders submitted in any other  way (e.g. e-mail or by letter) will be disregarded.  In order to submit a tender using e-Submission, economic operators (each member of the  group in the case of a joint tender) will need to register in the European Commission's Participant Register - an online register of organisations participating in EU calls for tenders  or proposals. On registering each organisation obtains a Participant Identification Code  (PIC, 9-digit number) which acts as its unique identifier in the above register. Instructions  on how to create a PIC can be found on this page. Economic operators already registered  1 Subscription to the call for tender in e-Tendering allows interested economic operators to receive e-mail  notifications when new information or documents are published. Subscription is free of charge and does not  involve any commitment to submit a tender.  2  For detailed instructions on how to submit a tender please consult the e-Submission Quick Guide available at:  https://webgate.ec.europa.eu/digit/opsys/esubmission/assets/documents/manual/quickGuide_en.pdf.  The supported browsers, file types, size of attachments and other system requirements can be consulted at:  https://webgate.ec.europa.eu/fpfis/wikis/x/f6dqEg. In case of technical problems, please contact the e- Submission Helpdesk (see contact details in the e-Submission Quick Guide) as soon as possible.  3  https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/home INVITATION TO TENDER Title: “ Development of roadmaps for action on:  Reference: OC/EFSA/ED/2020/01 Procurement procedure: Open call  Version of February 2019  LOT 1 - Building a European partnership for next generation, systems-based environmental  risk assessment; LOT 2 - New approach methodologies in risk assessment; LOT 3 - Risk assessment of combined exposure to multiple chemicals ”