68 for short-term official travel to Geneva or elsewhere. Experts who wish to take advantage of this coverage must complete a form supplied by OHCHR authorizing the deductions. Terms and conditions of the scheme, including coverage, are available from Van Breda through the Secretariat. Experts can opt out of the scheme at any time by notifying the Secretariat in writing. 34. Experts are covered while on official field missions to most countries by an emergency medical evacuation insurance through SOS International. I. Security 35. In view of the serious liability and insurance implications, OHCHR security clearance for travel is issued only after experts have fulfilled the following mandatory requirements: 1. Basic Security in the Field (BSITF online training) 36. Every expert is required to complete the United Nations “Basic Security in the Field” training. Preferably, it should be completed before/immediately after taking up their functions as an expert. The training can be accessed online at http://dss.un.org/BSITF. Upon satisfactory completion of the online training, a certificate is automatically generated; it must be printed and sent to sioc@ohchr.org for future reference. 2. Advanced Security in the Field (ASITF online training) 37. Every expert who is travelling to a location identified as a field duty station by the International Civil Service Commission is required to complete the United Nations “Advanced Security in the Field” training prior to travelling. It is strongly recommended that the ASITF be completed as soon as possible after the expert takes up his/her functions, so as to avoid difficulty with issuance of security clearance before travel. This training is valid for three years and must be re-taken before expiration of the certificate, if necessary. The training can be accessed online at http://dss.un.org/ASITF. Upon satisfactory completion of the online training, a certificate is automatically generated; it must be printed and sent to sioc@ohchr.org for future reference. 3.  Integrated Security Clearance and Tracking System (ISECT online DSS security clearance programme) 38. United Nations security policy requires that experts travelling to countries with a security phase must obtain a travel security clearance from the Designated Official for Security for the country to be visited, through the ISECT system. Even for travel to countries with no security phase, the Designated Officials must be notified of the arrival and departure times. This allows the United