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Rule 161
Mirrors. All mirrors should be used effectively throughout your journey. You should
- use your mirrors frequently so that you always know what is behind and to each side of you
- use them in good time before you signal or change direction or speed
- be aware that mirrors do not cover all areas and there will be blind spots. You will need to look round and check.
Remember: Mirrors – Signal – Manoeuvre
The Highway Code © Crown copyright. Source: http://gov.uk/highway-code