Posting policy for international taxation establishes selection criteria and a three-year tenure with limited extension options. Selection for postings to the Directorates follows the Annual General Transfer Policy: Assistant/Deputy Commissioners need minimum three years' field experience (preferably corporate assessment); Joint/Additional Commissioners need minimum three years in grade; preference for specialized international taxation and transfer pricing expertise. Normal tenure is three years, with eligibility for FT&TR or Overseas postings before completion; tenure exceptions apply on promotion or deputation; retention may extend to a maximum of five years based on suitability, administrative need and willingness; postings made by the approving authority under the Annual General Transfer Policy.