MODEL SPECIFIC CONTRACT – TIME & MEANS TIME & MEANS SPECIFIC CONTRACT No  [ complete ] implementing Framework Contract No  ECHA/2020/666  25  [The parties identified above and hereinafter collectively referred to as ‘the  contractor’ shall be jointly and severally liable vis-à-vis the contracting authority for  ([ collectively ] "the contractor"), represented for the purposes of signing this specific  contract by [forename, surname and function of legal representative,]  [ repeat these data as many times as there are contractors in case of joint tender  and continue numbering ]  [appointed as leader of the group by the members of the group that submitted the  joint tender ]  [ VAT registration number ]  [official address in full] [ statutory registration number ]  [ official legal form ]  $^{ }$[official name in full] of the one part, and  The European Union (‘the Union’), represented by the European Commission (‘the  Commission’, ‘the contracting authority’), represented for the purposes of signing  this specific contract by [forename, surname, function, department of authorising  officer], Directorate-General for the Environment,]  [Or] The European Chemicals Agency (hereinafter referred to as "the contracting  authority"), which is represented for the purposes of the signature of this contract  by [ forename, surname, function, authorising officer ], 