What are the time or other requirements for ensuring that SDS sheets are current?

The entity preparing the SDS should include a date of preparation or version number to avoid confusion for future updates.

At 1910.1200(g)(2)(xvi) OSHA states that Section 16. Other information should include the “date of preparation or last revision.”

At 1910.1200(g)(5) OSHA states that “The chemical manufacturer, importer or employer preparing the safety data sheet shall ensure that the information provided accurately reflects the scientific evidence used in making the hazard classification. If the chemical manufacturer, importer or employer preparing the safety data sheet becomes newly aware of any significant information regarding the hazards of a chemical, or ways to protect against the hazards, this new information shall be added to the safety data sheet within three months. If the chemical is not currently being produced or imported, the chemical manufacturer or importer shall add the information to the safety data sheet before the chemical is introduced into the workplace again.” If no new information is available, then the original SDS is sufficient.

However, in Canada under the WHMIS law, SDSs must be reviewed or updated every three years in order to be in compliance.