Funder: National Science Foundation

Due Dates: Proposals accepted anytime (rolling submission)

Funding Amounts: Track 1: up to $150,000/year (typically 3 years); Track 2: up to $300,000 total; 3–4 awards per division per year

Summary: Supports scientists and engineers returning from a research hiatus to re-engage or retrain for active academic research careers in chemistry, bioengineering, environmental, and transport systems.

Key Information: Eligibility confirmation from a program director is required before proposal submission.