Power of attorney (see Section 2.4.1) model in Annex 3. Power  of attorney  ☒ With the tender in e-Submission  'Power of attorney'  In  the  Group  leader's  section  under  'Parties'   'Identification  tenderer'   'Attachments'  'Other  documents'.  Commitment letter (see  Section  2.4.2  and  2.4.3) ☒  (model in  Annex 5.1) ☒  (model in Annex  5.2) With the tender   in e-Submission 'Commitment  letter'  With the concerned entity  under 'Parties'   'Identification tenderer'   'Attachments'  'Other  documents'. Evidence of non-exclusion (see Section 3.1) ☒ ☒ ☒  ☒  ☒ Only upon request by  the  Contracting authority At  any  time  during  the  procedure n.a.  n.a.  Evidence of legal existence  and status  ☒ ☒ ☒  Only upon request by  the EU  Validation services At  any  time  during  the  procedure In the Participant Register  n.a.  n.a.  Evidence of legal capacity  (see Section 3.2.1)  n.a.  n.a.  n.a.  n.a.  n.a.  n.a.  Evidence of economic and  financial capacity F1  (see Section 3.2.2) The documents must be provided  only by the involved entities   who contribute to reaching the minimum capacity level for criterion F1  With the tender in e- Submission  “Balance_sheet_  entity_year”  “Profit_Loss_Acco unt_entity_year”  With the Group leader or  the  sole  tenderer  under  'Parties'   'Identification  tenderer'   'Attachments'  'Econo- mic and financial capacity'.  45