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▪ On weekends and ECHA holidays: 100 % of the corresponding person-day price for normal working hours, pro rata. 

▪ Surcharges do not apply during travels. 

2. For “ on-call ” (also known as “ stand-by-duty ”) services to ensure the availability of a resource - i.e. to be reachable by phone –  during a period and, if not agreed otherwise, to be present at the working place within 75 minutes of being alerted. 

Such “on - call” -services are chargeable by 25% (during normal working days) or 50% (during weekends and ECHA holidays) of the rate applicable for the time- window during which these services are delivered, pro-rata. The service should be delivered by the same profile(s) providing the duties during normal working hours. 

3. For all other cases when ECHA requires working outside normal working days/hours, a 50% or 100% surcharge of the corresponding person-day price, pro- rata, applies on normal working days or on weekends and ECHA’s holidays respectively. 

For off-site specific contracts, ECHA may demand (for justified reasons) that some resources of the contractor, including sub-contractors, be working according to such daily schedule that the time difference between the work hours at the place of performance and the ECHA normal working hours does not exceed two hours. 

## 9.9. Language requirements 

The working language of the Agency is English. The English language shall be used throughout the execution of this Framework Contract for all communication, reports and other documentation. 

Therefore, it is required that all members of the contractor ’s staff involved in the Framework Contract have proficient knowledge of English, spoken and written. In particular, whenever a particular person is required to work on-site at ECHA, or otherwise needs to be in collaboration with ECHA staff during the assignment, it is necessary that the person possesses understanding, speaking and writing skills of English language at level C1 as a minimum. 9 

ECHA reserves the right to request the replacement of a resource if s/he does not have the adequate knowledge of English as deemed necessary for the execution of the tasks. 

## 10. Annexes 

Some annexes to the Technical Specifications document are not publicly available; section 9.2 Confidentiality describes the process on how to receive the annexes. 

