 The Control of Noise at Work Regulations 2005 introduced safety limits for daily noise exposure in the UK like 92 dBA as average during 30 minutes.The notion of "loudness equals greatness" pervades rock music to the extent that it has been satirized.In the mockumentary "This Is Spinal Tap", the band is presented by the fictional filmmaker Marty di Bergi as "one of England's loudest bands".