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✅ (MSS) Mandatory Action Signs

Mandatory signs are safety signs used to instruct a specific course of action that must be followed. These safety mandatory signs are typically circular with a blue background and are used in workplaces, construction sites, and industrial environments.

The purpose of mandatory signs is to clearly communicate required actions, such as the use of PPE, ensuring compliance with health and safety regulations through standardized symbols.

This sign signifies that a space must be ventilated before and during entry to avoid the accumulation of hazardous toxic gases or oxygen depletion.





Marine Lite ✓ Mandatory Action Signs and Symbols :: Keep Closed At Sea/High Noise Level. To signify that ear protection must be worn.








It is used to signify that people must wash their hands before preparing food.

Mandatory action signs are used to instruct persons of a specific course of action that shall be followed.

To signify that only glass allowed.

To signify that the lamp must be used only in a luminaire with a protective shield.

Hazard: Injury such as from heat, fire, UV radiation from contact with or exposure to the unshielded lamp.

ISO 7010-M070


To signify that anti-tip restraints must be used.

Hazard: Object tilting and falling.

ISO 7010-M071


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Mandatory action signs are used to instruct persons of a specific course of action that shall be followed.

Mandatory action signs are used to instruct persons of a specific course of action that shall be followed.

Mandatory action signs are used to instruct persons of a specific course of action that shall be followed.