Rule / OM Reference: Rule 8 and Rule 10, CCS (LTC) Rules, 1988; DoPT O.M. No. 31011/12/2007-Estt.(A) dated November 29, 2007.
- The concession to visit "Any Place in India" (All India LTC / AILTC) is admissible once in a four-year calendar block (e.g., 2022–2025, 2026–2029).
- The four-year block is divided into two 2-year sub-blocks (e.g., Sub-block 1: 2022–2023; Sub-block 2: 2024–2025). In each sub-block, a Government Servant (GS) is entitled to Home Town LTC.
- Under Rule 8(2), AILTC can be availed against (and in lieu of) one of the two Home Town concessions in the 4-year block.
- The Grace Year (Rule 10): A concession not availed in a given 2-year or 4-year block may be carried forward and availed in the first year of the succeeding block (the "Grace Year").
- Example: If Home Town LTC for sub-block 2022–2023 is unutilized, it can be availed up to December 31, 2024.
- Example: If AILTC for the 2022–2025 block is unutilized, it can be carried over and availed up to December 31, 2026.
- Outward Journey Rule: To legally establish carry-over utilization, the outward journey must commence on or before December 31 of the grace year. The return journey may legally fall in the subsequent calendar year without forfeiting the concession.