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  • Applicability of EPCRA §§302 and 304 to EHSs produced on-site

    If an extremely hazardous substance is not stored on-site but is produced in a process such as incineration, is it exempt from both threshold planning quantity calculation and release reporting if the release is covered by a Clean Air Act permit? If the hazardous substance is produced on-site in a…

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  • Can state and local laws supersede EPCRA?

    Can existing state and local laws that provide substantially similar emergency planning supersede the specific provisions of the federal law? Title III (Section 321) generally provides that nothing in Title III shall preempt or affect any state or local law. However, material safety data sheets, if required under a state…

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  • Primary purpose of Section 302 notification requirements

    What is the primary purpose of Section 302 notification requirements? Notifications indicating that a facility has one or more extremely hazardous substances in excess of the threshold planning quantity help to identify locations within the State where emergency planning activities can be initially focused. While the substances on the list…

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  • Counting Ammonia and Ammonium Hydroxide for Emergency Planning Notification under EPCRA section 302

    Ammonium hydroxide is a solution of ammonia in water. If a facility stores ammonium hydroxide (CAS #1336-21-6) in a large storage tank on site, should the facility include the quantity of ammonia in ammonium hydroxide for the Emergency Planning and Community Right-to-Know Act (EPCRA) section 302 emergency planning notification? The…

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  • Local Emergency Planning Committee request of notification for exempt chemicals

    Under Section 312 , if a local emergency planning committee requests a Tier I/II from a facility owner/operator for a substance which is exempt (either under EPCRA, Section 311(e), or the OSHA Hazardous Communication Standard, 29 CFR 1910.1200(b)) , are they required to comply with the request? If the LEPC…

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  • Entering Alternative Storage Types and Pressure and Temperature Conditions on Tier II Form

    EPA provides a list of storage types and conditions for pressure and temperature in the instructions for the paper Tier II form and as dropdown menus in Tier2 Submit. Are facilities required to use the storage types and conditions that EPA provides, or can facilities provide different values? Facilities are…

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  • Attaching Site Plan Using Tier2 Submit

    Tier2 Submit does allow a user to attach and submit a site plan with the Tier II inventory information. However, before using Tier2 Submit to submit a site plan, the facility should check with the relevant State or Tribal Emergency Response Commission ( SERC or TERC ) and/or their state…

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  • EHSs and the EPCRA emergency planning requirements

    What is purpose of the list of extremely hazardous substances in regards to the emergency planning requirements of EPCRA? The extremely hazardous substances list and its threshold planning quantities are intended to help communities focus on the substances and facilities of most immediate concern for emergency planning and response. However…

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  • Does hydrogen sulfide present in the ground count towards the TPQ and RQ?

    A petroleum company is drilling for oil contained in the ground below their facility. Would the hydrogen sulfide present in the ground be counted toward the threshold planning quantity (TPQ) for this extremely hazardous substance (EHS) under Section 302? Also, if there is a reportable release of this EHS above…

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  • Calculating vulnerability zone distances for EHSs in solutions

    When calculating vulnerability zone distances, how would the quantity released (QR) be handled for an extremely hazardous substance (EHS) in solution? If the EHS is in solution, a facility can make a rough estimate of the QR using equation (1) on page G-2 of the "Technical Guidance for Hazards Analysis."…

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  • Range Code or Specific Weight for Maximum Amount and Average Daily Amount on Tier II Form

    When submitting Emergency Planning and Community Right-to-Know Act (EPCRA) Section 312 Tier II reports, does the owner or operator of the facility need to enter a specific weight in pounds for the maximum amount and the average daily amount of a certain hazardous chemical present at the facility, or should…

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  • Threshold planning quantity (TPQ) for a non-reactive extremely hazardous substance (EHS) solid handled both as a solution and as a powder

    How does a facility apply the threshold planning quantity (TPQ) for a non-reactive extremely hazardous substance (EHS) solid that is handled both as a solution and as a powder? Facilities that handle both the powdered and solution forms of a particular non-reactive solid EHS will have to consider the quantities…

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  • Will LEPCs impose significant requirements on small businesses?

    Will the local emergency planning committees impose significant requirements on small businesses? Will EPA clarify the information requirements in the emergency planning guidance and in the rulemaking? The Agency's small business analysis does not indicate that emergency planning requirements will cause a significant burden to small facilities. Small facilities are…

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  • Tier2 Submit validation error due to incorrect CAS number

    What do I do if I get a validation error in Tier2 Submit due to an incorrect Chemical Abstracts Service (CAS) number? Your CAS number should be typed exactly as it appears on the substance's SDS. Review your safety data sheet (SDS) to see if the CAS number was typed…

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  • Completing Tier II Forms When Information Has Not Changed

    Pursuant to 40 CFR 370.42(c) and (r) , an owner or operator submitting federal Emergency Planning and Community Right-to-Know Act (EPCRA) Tier II inventory information must indicate if the facility or chemical information is identical to that submitted last year. If the facility or chemical information is the same as…

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