SWL is a three letter initialism in which can or may refer to:Safe Working Load usually used in relation to cranes and lifting devices.Maximum Load a crane or Lifting device can withstand without any damage to Equipment and Environment.Scheme Widget LibraryShort-Wave Listening, the hobby of listening to shortwave radio broadcasts.Social Welfare Lottery.Sound Power Level, a measure of sound power.State-Wide League, an alternate name for the Tasmanian Football League.Structured Workplace Learning.
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