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exhaustive as possible, ECHA may require additional expertise during the contract execution. In the event equivalence between existing profiles and the new expertise required cannot be established, an additional profile description can be added to the list of profiles with the respective daily rate. Daily rate shall not exceed the upper limit as established in Annex 12 to the Tender Specifications for the ‘Additional profile’ . 

ECHA reserves the right to assess whether an equivalence between an additional profile and the list of profiles already available in the catalogue shall apply. 

For the sake of clarity, refinement of the requirements for a profile and/or request for different certifications (or equivalent) shall not be considered as justifications for new profiles. 

## 5.2.1. Requested certifications 

It is important to note that for some profiles of this FWC666, ECHA requires a certain certification or equivalent. 

In case the resource does not possess the specified valid certificate, ECHA may also accept an equivalent certificate or other evidence that justifies equivalent skills to those of the required certificate. ECHA assesses whether this alternative evidence duly substantiates the equivalence to the certification based on the merit of the case 5 . Equivalence can consist, for example, of certificates issued by in-house training centres or by a third-party AND  years of relevant professional experience. 

The certifications may be assessed during the contract implementation, according to the process defined in Contracting Modes and Execution section. 

With regards to the required language skills of the contractor resources assigned to work under this FWC666, please see also section Language requirements. 

## 6. Contracting Modes and Execution 

ECHA will implement the Framework Service Contract via specific contracts in the form of Fixed-Price (FP), Time and Means (T&M), as well as Quoted Time and Means (QTM), or a combination of these. 

The signature of the Framework Contract does not constitute orders per se. Instead, it lays down the legal, financial, technical and administrative provisions governing the relationship between the Agency and the contractor during their period of validity. 

Actual orders will be placed after FWC666 is signed and in force, through “ Specific C ontracts”. For that purpose,  ECHA will issue a request for offer, to which the contractor will respond with an offer (under the provisions of FWC666). The request for offer and the accepted offer result in a Specific Contract signed by both parties. 

Notwithstanding the above, it is reminded that horizontal activities at FWC level will not be covered by an order and shall be at no extra cost for ECHA (e.g. account management, participating in governance meeting, contract management, reporting etc.). 

