| Superseded and Withdrawn components | 
| Number 
 | Title | Status | 
| A.6 (11/12) 
 | Cooperation and exchange of information between the ITU Telecommunication Standardization Sector and national and regional standards development organizations All relevant provisions of Recommendations ITU-T A.4 and ITU-T A.6 are either covered by the Recommendations ITU-T A.5 and A.25 or by the Recommendation ITU-T A.24.
 | Withdrawn 
 | 
| A.6 (09/98) 
 | Cooperation and exchange of information between ITU-T and national and regional standards development organizations | Superseded 
 | 
| A.6  (10/00) 
 | Cooperation and exchange of information between ITU-T and national and regional standards development organizations | Superseded 
 | 
| A.6 (06/02) 
 | Cooperation and exchange of information between ITU-T and national and regional standards development organizations Republished in the Yellow Book 2004 without further modification.  A version integrating Amendment 1 (approved  2006-07-07)  and Amendment 2 (approved 2007-12-07) was published in the Proceedings of WTSA-08 without further modificiation.
 | Superseded 
 | 
| A.6 (2004) Amendment 1 (07/06) 
 | Procedures for preparation of liaison statements between scheduled meetings A version integrating this Amendment with the base Recommendation (approved  2000-10-06) was published in the Proceedings of WTSA-08 without further modificiation.
 | Superseded 
 | 
| A.6 (2002) Amendment 2 (12/07) 
 | Change to IPR policy qualifying criteria A version integrating this Amendment with the base Recommendation (approved  2000-10-06) was published in the Proceedings of WTSA-08 without further modificiation.
 | Superseded 
 | 
| A.6 (2012) Erratum 1 (02/20) 
 | ITU-T A.6 Erratum 1 (2020) applies only to the Arabic version
 | Superseded 
 |