# Council Directive 92/58/EEC of 24 June 1992 on the minimum requirements for the provision of safety and/or health signs at work (ninth individual Directive within the meaning of Article 16 (1) of Directive 89/391/EEC), Division 2.2: If verbal communication is used instead of — or together with — gestures, code words should be used such as:

Extent: E+W+S+N.I.

—
start
to indicate the start of a command
—
stop
to interrupt or end a movement
—
end
to stop the operation
—
raise
to have a load raised
—
lower
to have a load lowered
—
forwards
to be coordinated with the corresponding hand signals
—
backwards
—
right
—
left
—
danger
for an emergency stop
—
quickly
to speed up a movement for safety reasons.

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Source: https://www.legislation.gov.uk/eudr/1992/58/annex/VIII/division/2/division/2.2 (the official version)
Page: https://openlegislation.uk/eu-directive-1992-58/annex-VIII/division-2/division-2.2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.