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Table 2 Basic Noise Levels (BNLs)
ASR
A
B
C
Time Period
All days during the evening
| (1900 to 2200 hours), and
holidays (including Sundays)
60
65
70
I during the day-time and evening | | (0700 to 2200 hours)
All days during the night-time | | (2200 to 0700 hours)
45
50
55