LVSF 2026 The 2026 Lehigh Valley Science and Engineering Research Fairwill take place on March 13 & 14, 2026. Register The Lehigh Valley Science and Engineering Research Fair was established in 1991. It is open to all sixth through twelfth graders in both Northampton County and Lehigh County. Lehigh University sponsors and hosts the fair each year in March.LVSF is a feeder fair of Delaware Valley Science Fair. Top winners at LVSF have the chance to participate at Del Val. Three winners from each high school grade (9-12) at Del Val are promoted to The Regeneron International Science and Engineering Fair. 2025 LVSF Results2024 LVSF Results2023 LVSF Results