"To: Members of the staff". "The present circular will be in effect until further notice." Annexes (p. 7-15): 1. Required documentation for rental subsidy -- 2. Duty stations in Europe and North America where a rental subsidy may be paid -- 3. Threshold percentages for New York for the purpose of calculating rental subsidies -- 4. Reasonable maximum rent levels for New York -- 5. Sample calculations (New York) -- 6. Sample calculations (duty stations outside Europe and North America). Supersedes ST/IC/2013/25 and ST/IC/2011/15. Superseded by ST/IC/2018/9.