3GPP specifications are made available - free of charge - four times a year following the quarterly Technical Specification Group (TSG) plenary meetings. At each TSG round, specs can be:
- Brought under change control (i.e. at least 80% complete).
- Unchanged from their previous versions.
- Revised as a result of incorporating approved Change Requests.
- At Release-freeze time, upgraded to that Release with no technical change.
The 3GPP Mobile Competence Centre (MCC) makes all Specifications available as soon as possible following each TSG plenary meeting round.