What Does HLW Stand For?

HLW stands for High Level Waste

High Level Waste (HLW) refers to the highly radioactive materials generated from nuclear reactors and the reprocessing of nuclear fuel. HLW requires extensive management and containment due to its potential harm to human health and the environment. It is typically stored in specialized facilities designed to isolate it from the public and the ecosystem until it can be safely disposed of or mitigated. The long-term handling of HLW is a critical component of nuclear energy management and waste disposal strategies.

Added on 14th April 2008 | Last edited on 16th June 2025 | Edit Acronym