Annexes (p. 7-13): 1. Required documentation for rental subsidy -- 2. Threshold percentages for New York for the purpose of calculating rental subsidies -- 3. Reasonable maximum rent levels for New York -- 4. Sample calculations (New York) -- 5. Sample calculations (group 2 duty stations). "The present circular will be in effect until further notice." Supersedes ST/IC/2018/9, ST/IC/2016/30, ST/IC/2016/30/Corr.1 and ST/IC/2016/30/Corr.2.