Reference number
ISO 20383:2017
ISO 20383:2017
© ISO 2025
International Standard
ISO 20383:2017
Tractors and machinery for agriculture and forestry — Speed Identification Sign (SIS)
Edition 1
2017-11
2017-11
ISO 20383:2017
67871
Published
(Edition 1, 2017)
This publication was last reviewed and confirmed in 2023.
Therefore this version remains current.
Expected to be replaced by ISO/DIS 20383 within the coming months.
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
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Status: PublishedPublication date: 2017-11Stage: International Standard to be revised [90.92]
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Edition: 1Number of pages: 6
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Technical Committee :ISO/TC 23/SC 4ICS :65.060.10
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Next version under development
Draft
International StandardISO/DIS 20383
Tractors and machinery for agriculture — Speed Identification Sign (SIS)
Reference number
ISO/DIS 20383
ISO/DIS 20383
Edition 1
© ISO 2025
Draft International Standard
ISO/DIS 20383
Tractors and machinery for agriculture — Speed Identification Sign (SIS)
Life cycle
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Now
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Will be replaced by
Under developmentISO/DIS 20383