nddsicon_child“Early identification is the first step in early intervention.”

Ministry of Children and Youth Services

In cooperation with the Ministry of Children and Youth Services, the Government of Ontario signed a licensing agreement in 2006 to make the ndds more widely accessible to Ontario residents.

The free version of the ndds is available to Ontario residents free of charge by either email in PDF format or by using the Interactive ndds, an online, multimedia version of the tool.


t: (705) 472-9211 or 1-888-582-0944
f: (705) 472-9588