Welcome to the online website of the 1st National Conference on Safety Engineering and Environmental Sustainability (NCSEES’2025). The NCSEES’2025 is organized by the Institute of Health & Safety in collaboration with the Laboratory of Research in Industrial Prevention (LRPI) under the patronage of the University of Batna 2. The conference will be held on Decemebr 10 - 11, 2025, at the Institute of Health & Safety, University of Batna 2, Batna, Algeria.