Issue link: http://itf.uberflip.com/i/447398
25 (b) The Officials must be selected from the current list of ITF Certified Officials. (c) Neutral Chair Umpires appointed by the ITF for World Group Ties must have an ITF certification of Silver Badge or higher. Chair Umpires appointed by the Home Nation shall have an ITF certification of Bronze Badge or higher with respect to Ties in the Zone Group I and White Badge or higher with respect to Ties in the Zone Group II. Nations unable to comply with this requirement must contact the ITF for advice and possible assistance. Nominations of local Chair Umpires/Chief Umpires and their certification must be made on the existing Questionnaire and submitted to the ITF for each Tie for approval. (d) The National Association of the officials concerned shall be informed of each appointment. (e) The Home Nation must ensure that when required a visa is issued to the Referee and to Neutral Chair Umpires. (f) The Chief Umpire appointed by the Home Nation must have an ITF certification of silver badge or higher with respect to Ties in the World Group and White Badge or higher with respect to Ties in the Zone Groups I to IV. Nations unable to comply with this requirement must contact the ITF for advice and direction at least five weeks ahead of the tie. (g) Line Umpires for World Group and Zone Group I Ties must be approved by ITF officiating and as a minimum all Line Umpires must have experience at international level events. Nations unable to comply with this requirement must contact the ITF for advice and direction at least five weeks ahead of the Tie. The ITF's judgment in (f) and (g) is final and binding. 44. REFEREE - DUTIES The Referee must: (a) Arrive no later than on the Monday of the Davis Cup week unless otherwise approved the ITF. (b) Inspect the match court and practice courts where necessary. (c) Call a meeting of the two Captains by no later than the Wednesday so that all three can sign a statement of arrangements to be made for the Tie and the official functions. (d) Ensure that all arrangements for the Tie are satisfactory. (e) Ensure that the programme of play is arranged in accordance with Regulation 42, and if necessary change the time for commencement of play. (f) Ensure that Chair Umpires and Line Umpires have been appointed and at his discretion appoint substitutes for any of them during the course of a match. (g) Be entitled to a seat within the court enclosure with a clear view of the court. However, when the Referee is assisted by a Neutral Chair Umpire, the Referee may sit in close proximity to the court. (h) Prohibit any persons other than the contesting players, the Captains, the Chair Umpires, Line Umpires and ball boys from entering the enclosure during the course of a match unless he decides otherwise. For this purpose the enclosure shall mean the court as defined by the operations manual. (i) Decide any point of law which may arise.