As states have taken on significant and often transformative efforts to strengthen their approaches to early learning, they also face new challenges: they must sustain effective work that is contributing to their early learning goals. Chapter 3 of the Systems Building Resource Guide discusses several factors that are key to sustaining important work and improvements: 

•  Sustainability and systems building 
•  Sustainability planning and implementation 
•  The sustainability timeline 
•  The people involved, including participants, partners, and consultants
•  Policy, legislation, and regulation 
•  Overcoming challenges 
•  Cross-sector resources