PartB:ChildrenandYouthAges3-21 AssistanceforEducationofAllChildrenwith Disabilities(2006) PartC:InfantsandToddlersAgesBirth-2 InfantsandToddlerswithDisabilities(2011) Eligibility: Infants&toddlersfrombirthtoage2whoareexperiencing developmentaldelaysinoneormoreareasareeligible.Theymay alsobeeligibleforservicesiftheyhaveadiagnosedphysicalor mentalconditionthatislikelytoresultindevelopmentaldelay.