4. Discussions 4.1 Activity Plan of TCTF Promotion of R&D Activities in the TCTF Community Possible Technical Supports for Developing Economies Actions for Future Meetings 4.2 New Structure of the TCTF 4.3 Guidelines for Uncertainty Evaluations in CMC Tables

Promotion of R&D Activities in the TCTF Community Developments of Optical Frequency Standards Optical Lattice Clocks Single Ion Trap Advanced Time and Frequency Transfer Techniques Optical Fiber Transfer TWSTFT, GNSS Other Advanced Methods Various Developments Dissemination Methods, Time Stamping, Time Scale Generations, etc.

Possible Technical Supports for Developing Economies Needs from NMIs technical training on GNSS and TWSTFT time transfer, and automated daily reporting to BIPM. how to establish TA(k). maintenance and improvement of the quality of UTC(k). dissemination (ntp, ptp, and radio code transmission). peer review (uncertainty evaluation). want to know information about works/projects which have industrial impact. procedures for conducting peer review. new methods and new techniques. how to establish dissemination services and traceability. technical supports to reduce type B uncertainty in the Circular-T. for frequency calibration services. on time transfer receiver’s calibration. joint cooperation, joint research, bilateral/multilateral comparisons. financial supports for a peer review assessment. standard documents (procedures) on calibrations and uncertainty evaluations.

Possible Technical Supports for Developing Economies Possible Supports A*STAR Training on T&F metrology, calibration on frequency standard, counter, timer and stopwatches. KRISS Training on QS, measurement uncertainty and its application, national time scale system, precision measurements, calibration services. NICT Provide opportunities to learn R&D on advanced metrology, T&F transfer, and time keeping. NIM Offer facilities for seminars and workshops. NMIJ Provide lectures and technical advisers for time keeping, time transfer, and calibration systems. TL Want to share experiences on CMC table submission and T&F calibration procedures. VMI Provide experiences on submission of CMC table and calibration procedures. Can participate bilateral, inter-laboratory comparisons. ITDT Offer venue and host meetings, workshops and related meetings. SIRIM Can participate bilateral, inter-laboratory comparison or proficiency testing. MUSSD Host meetings and workshops. Share experiences.

Actions for Future Meetings IAU General Assembly : August, 2012 at Beijing, China M. Hosokawa to become President of Comm. 31 (Time) Symposiums and Workshops should be organized. ATF2012 (?) AP-RASC : September, 2013 at Taipei, Taiwan T&F Training Program 2013 (?) URSI GASS : August, 2014 at Beijing, China Y. Koyama to become Chair of Comm. A Sessions should be coordinated.

New Structure of the TCTF Chair: H.-T. Lin (TL) Technical Secretary: ?? WG on MRA (Mutual Recognition Arrangement) Coordinator: H. Ito Members : TBD WG on GNSS (Global Navigation Satellite System) Coordinator: B. Warrington, Sub-Coordinator: ?? Sub WG on Remote Calibration : M. Imae WG on TWSTFT (Two-Way Satellite Time and Frequency Transfer) Coordinator: H. Maeno or M. Fujieda ? Joint WG on OFM (Optical Frequency Metrology) Coordinator: F.-L. Hong