The WorldBank and especially the Water and Sanitation Program (WSP) played an important role, especially at the start of the decade. A number of important documents were published:
- Communication support WorldBank TAG paper
- Design of pour flush latrines
- Appropriate sanitation
- Design manual appropriate sanitation
- Nightsoil composting
- Planner's guide
- VIP toilets
- VIP guidelines
However, the decade failed to address water and sanitation in an integrated way.
In recent years, the WorldBank promoted the use of Shit Flow Diagrams.
