In the US, Congress passed the Commercial Advertisement Loudness Mitigation (CALM) Act in 2010 and the FCC began enforcement in 2012. https://en.wikipedia.org/

In the US, Congress passed the Commercial Advertisement Loudness Mitigation (CALM) Act in 2010 and the FCC began enforcement in 2012. https://en.wikipedia.org/wiki/Commercial_Advertisement_Loudness_Mitigation_Act https://en.wikipedia.org/wiki/Commercial_Advertisement_Loudn...