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Who Must Report Their Chemical Inventory?

The owner or operator of a facility must submit a report when all the following conditions are met:
1) Facility is subject to the OSHA Hazard Communication Standard; and

2) Facility uses, produces, and/or stores a Hazardous Chemical and/or an Extremely Hazardous Substance (EHS); and

3) The quantity of one of these Hazardous Chemicals or Extremely Hazardous Substances is more than the Threshold Quantity (TQ).

The TQ for Hazardous Chemicals is 10,000 pounds. If your facility stores or uses more than 10,000 pounds of any one hazardous chemical or mixture containing the TQ of a hazardous chemical at your facility, at any one point in time, on any one given day (24 hours), as defined by the OSHA Hazard Communication Standard. (see pages 6-8). Examples include, but are not limited to, gasoline, diesel fuel, 1,1,1-trichloroethane, paint, methyl ethyl ketone, etc.

The TQ for Extremely Hazardous Substances is 500 pounds or the listed Threshold Planning Quantity (TPQ), whichever is less. Examples include, but are not limited to, chlorine, ammonia, hydrofluoric acid, nitric acid, etc.

For gasoline (all grades combined) at a retail gas station, the threshold level is 75,000 gallons, if the tank was stored entirely underground and was in compliance at all times during the preceding calendar year with all applicable Underground Storage Tank (UST) requirements at 40 CFR part 280 or requirements of the State UST program approved by the Agency under 40 CFR part 281.

For diesel fuel (all grades combined) at a retail gas station, the threshold level is 100,000 gallons, if the tank was stored entirely underground and the tank was in compliance at all times during the preceding calendar year with all applicable Underground Storage Tank (UST) requirements at 40 CFR part 280 or requirements of the State UST program approved by the Agency under 40 CFR part 281.