Under GHS, how must producers determine hazard classification?

The correct approach for producers to determine hazard classification under the Globally Harmonized System (GHS) is through new specific criteria. This means that producers must evaluate the hazards associated with the chemicals they handle according to standardized guidelines that provide clarity and consistency in classification. These criteria are based on comprehensive evaluations that consider various factors such as the physical, health, and environmental hazards of the substance.

Using new specific criteria ensures that hazard classifications are scientifically-based and aligned with international standards, facilitating better communication and understanding of chemical hazards. This standardized method helps ensure worker safety and effective risk management across different industries and countries.

In contrast, relying solely on internal audits, customer surveys, or just state regulations would not provide the same level of comprehensive and consistent assessment required for proper hazard classification under GHS. Each of those methods lacks the structured, science-based criteria that the GHS mandates for accurate hazard determination.