According to the California Division of Occupational Safety and Health (Cal/OSHA), even though California has not adopted its own state rule on the matter, California employers should submit their Form 300A data for 2017 using the federal Occupational Safety and Health Administration (OSHA) online portal by July 1, 2018. Entities that must submit information under the federal rules include "[e]stablishments with 250 or more employees that are currently required to keep OSHA injury and illness records, and establishments with 20-249 employees that are classified in certain industries with historically high rates of occupational injuries and illnesses."

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