WHO TRS (T e c h n i c a l  R e p o r t  S e r i e s) 992 was released in May-2015 by WHO.

This TRS has someuseful guidelines on the following topics as annexure.

Out of these annexure,annex 3 (Guidelines on good manufacturing practices: validation, Appendix 7: non‑sterile process validation), annex 4 (General guidance on hold-time studies) and annex 5 (Technical supplements to Model guidance for the storage and transport of time- and temperature-sensitive pharmaceutical products) are more useful to industry at this moment.

Forfurther details, please refer: WHO TRS 992