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  • Aggregating a substance located in multiple processes

    Under 40 CFR Part 68, if multiple processes at a stationary source contain the same regulated substance, must the amounts of the substance in the individual processes be aggregated to determine whether a threshold is exceeded? No. Applicability of the risk management program requirements is based upon the presence of…

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  • NFPA 4 Criteria

    A stationary source has a mixture above the threshold. At standard temperature and pressure, the mixture does not meet the criteria for a National Fire Protection Association flammability rating of 4 (NFPA 4). At elevated temperatures and pressures, however, the mixture meets the NFPA 4 criteria. Is this process covered…

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  • Can the partial pressure exemption be applied to formaldehyde solutions?

    Formaldehyde is not specifically listed with a concentration cutoff, but is listed with the qualifier "solution". Can the partial pressure exemption be applied to formaldehyde solutions? According to 40 CFR §68.115, the amount of any listed toxic substance present in a mixture at a concentration greater than 1% does not…

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  • Ammonia used as agricultural nutrient held by farmers and the general duty clause

    Does the exemption at 40 CFR 68.125 for "ammonia used as an agricultural nutrient, when held by farmers" apply to the CAA Section 112(r)(1) general duty clause? No. The exemption for ammonia held by farmers for use as fertilizer applies only to the provisions of the risk management program regulations…

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  • Applicability for a process at a facility connected to another facility by piping

    The definition of process would seem to say that my process is part of the larger company’s process because they are interconnected. Why can’t the larger company just include my process in its RMP? Your process is not part of the larger company’s stationary source because it does not meet…

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  • Is methane generated on site and used for fuel subject to Part 68?

    A wastewater treatment plant generates methane through a natural digestion process, then stores and uses the methane as fuel. Under 40 CFR Part 68, must the owner or operator of this stationary source evaluate the amount of methane to determine whether more than a threshold amount is present in any…

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  • Ammonia present in ammonium hydroxide

    The list of regulated toxic substances at 40 CFR Section 68.130 includes both "ammonia (anhydrous)" and "ammonia (conc 20% or greater)," but does not include a specific listing for "ammonium hydroxide." The Chemical Abstract Registry Service (CAS) number for ammonium hydroxide is 1336-21-6, and the CAS number for ammonia is…

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  • Is gasoline exempt from the requirements of Part 68?

    Is gasoline exempt from the requirements of 40 CFR Part 68? Although gasoline is not specifically listed as a regulated substance under 40 CFR Section 68.130, it may contain one or more regulated substances. On January 6, 1998 ( 63 FR 640 ), EPA exempted from threshold determination regulated flammable…

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  • Compliance date for adding covered processes

    What happens if I bring a new covered process on line (e.g., install a second storage tank) after submitting my original RMP? For a new covered process added after the initial compliance date, you must be in compliance on the date you first have a regulated substance above the threshold…

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  • Covered chemicals and the definition of process

    Does a chemical need to be in a process to be covered by the CAA §112(r) risk management program requirements? The risk management program requirements apply to owners and operators of stationary sources that have more than a threshold quantity of a regulated substance contained in a process (40 CFR…

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  • Do I need a new CDX account if I am associated with more than one organization?

    Answer: No. You can submit on behalf of multiple organizations through the same account by selecting or adding the appropriate organization within the application. You must submit a separate application for each organization. Question Number: 23002-37020 Find a printable PDF copy of all frequent questions pertaining to lead .

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  • How can I find the status of my Individual application?

    Answer: For applications that do not require a third party exam you will receive an approval package by mail when your application is approved. Please note that processing times may vary, but generally take between 2 to 3 weeks. You will be contacted if an issue arises in the processing…

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  • It’s been several weeks since I applied for Firm certification and I haven’t received my certificate yet. What do I do?

    Approvals are sent by email, and occasionally these messages end up in your junk or spam email folder. Check in your Junk or Spam folders for an email from [email protected] . Your certificate and customized logo are also sent to your CDX inbox , so if you don’t see the…

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  • What is an ACH debit transaction?

    An ACH debit transaction is a debit directly from a personal savings, personal checking, or business checking account. In some instances, business checking accounts may not permit ACH transactions. In order to conduct an ACH transaction, you will need to provide your bank’s routing number and your account information. In…

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  • Who is the attesting individual?

    Answer: The attesting individual is the individual completing the application, who affirms that their firm will only use certified people and appropriate work practice standards as required under § 745.227 when conducting lead-based paint activities. Question Number: 23002-37004 Find a printable PDF copy of all frequent questions pertaining to lead…

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