# The Environmental Noise (Wales) Regulations 2006, Paragraph 1: Interpretation

Extent: E+W

In this Schedule—
...
“LAeq,16h” is the equivalent continuous sound level in dB(A) that, over the period 07:00 – 23:00 hours, contains the same sound energy as the actual fluctuating sound that occurred in that period;
“LAeq,18h” is the equivalent continuous sound level in dB(A) that, over the period 06:00 – 24:00 hours, contains the same sound energy as the actual fluctuating sound that occurred in that period;
“LAeq,6h” is the equivalent continuous sound level in dB(A) that, over the period 24:00 – 06:00 hours, contains the same sound energy as the actual fluctuating sound that occurred in that period.

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Source: https://www.legislation.gov.uk/wsi/2006/2629/schedule/3/paragraph/1 (the official version)
Page: https://openlegislation.uk/environmental-noise-wales-regulations-2006/schedule-3/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.