Highway Code
Highway Code - Regulatory Section (Extracts).
Order of April 13, 1972
Noise Levels.
Order of August 3, 1957
Noise Levels.
Order of February 20, 1991
Sound Levels and Exhaust Systems - Reference EC Directives 70/157/EEC and 78/1015/EEC.
Order of July 10, 1979
Driver Perceived Noise of Wheeled Agricultural and Forestry Tractors - Reference EC Directive 77/311/EEC.
Order of July 18, 1985
Noise Level Checking.
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