Sustaining important public or grant-funded services after initial funding is terminated is a major public health challenge. We investigated whether tobacco treatment services previously funded within a statewide tobacco control initiative could be sustained after state funding was terminated abruptly. We found that 2 key strategies-redefining the scope of services being offered and creative use of resources-were factors that determined whether some community agencies were able to sustain services at a much higher level than others after funding was discontinued. Understanding these strategies and developing them at a time when program funding is not being threatened is likely to increase program sustainability.