ODF (Open Defecation Free) is defined as having no visible feces found in the environment and every household and public institution using safe technology for feces disposal that prevents contamination and access by flies/animals while being odorless. An ODF City has no open defecation, no visible feces, and all properties and floating populations having access to functional toilets connected to a disposal system. An ODF+ City meets all ODF criteria with at least 80% of residences having their own toilets and safe collection, conveyance and treatment of all feces. An ODF++ City has at least 95% of residences with their own toilets and safe management of all feces

1. ODF ( Open Defecation Free) :
"ODF is the termination of faecal-oral transmission”
Defined by
a) No visible faeces found in the environment; and
b) Every household as well as public/community institutions using safe technology option for
disposal of faeces
( Safe technology option means no contamination of surface soil, ground water or surface water;
excreta inaccessible to flies or animals; no handling of fresh excreta; and freedom from odour and
unsightly condition)"

2. Framework of ODF, ODF + & ODF++ City
Elimination of Open
Practices
Access to toilets Conveyance and treatment
of faecal waste
ODF City *Not a single person found
defecating in the open
*No traces of faeces are visible
in the city at any time of the
day
*All the properties in the city
have access to either own
toilet or functional community/
public toilet
*Floating population in the city
has an access to sufficient and
functional public toilets
*All toilets are connected to a
disposal system
ODF+ City *Not a single person found
defecating in the open
*No traces of faeces are visible
in the city at any time of the
day
*At least 80% of residential
properties in the city have
access to own toilets
*Remaining properties and
floating population in the city
have access to functional
community/ public toilets
*All toilets are connected to a
disposal system
* Regular and safe collection,
conveyance and treatment of
all the feacal matter
ODF++
City
*Not a single person found
defecating in the open
*No traces of faeces are visible
in the city at any time of the
day
*At least 95% of residential
properties in the city have
access to own toilets
*Remaining properties and
floating population in the city
have access to functional
community/public toilets
• All toilets are connected to
safe disposal system
•Regular safe collection,
conveyance and treatment of
all feacal matter and waste
water including septic tank
effluent and grey water