Draft
International Standard
ISO/DIS 20383
Tractors and machinery for agriculture — Speed Identification Sign (SIS)
Reference number
ISO/DIS 20383
Edition 2
© ISO 2025
Draft International Standard
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Under development
This Draft International Standard is in the enquiry phase with ISO members.
Will replace ISO 20383:2017

ISO/DIS 20383

Language
Format
CHF 65
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Abstract

ISO 20383:2017 specifies the dimensions, characteristics, and positioning of Speed Identification Signs (SIS). These signs indicate the maximum equipment ground speed, based on the ground speed design capability, for an agricultural vehicle.

A rear-facing SIS is visible to other operators on public roads approaching the equipment from behind. A forward-facing SIS, mounted on the front of towed equipment, alerts operators of the towing vehicle of the maximum specified ground speed capabilities at which the equipment combination can be operated.

ISO 20383:2017 is applicable to self-propelled, semi-integral and towed equipment moving on public roads.

General information

  • Status
     : Under development

    You can help develop this draft international standard by contacting your national member

    Stage
    : DIS ballot initiated: 12 weeks [40.20]
  • Edition
     : 2
    Number of pages
     : 6
  • Technical Committee :
    ISO/TC 23/SC 4
    ICS :
    65.060.10 
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Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goal

8
Decent Work and Economic Growth

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