TSCA Inventory flags, decoded

Indicates a substance exempt from reporting under the Chemical Data Reporting Rule, (40 CFR 711).

Nothing, for this substance, in the CDR census. The exemption belongs to the chemical and not to your company, so every other substance you make above the reporting threshold still counts.

The presence of "UVCB" indicates the substance is a Class 2 substance within the UVCB group, i.e. those with "unknown" or "variable composition," "complex reaction products" and "biological materials."

Care with identity. A UVCB has no definite molecular formula, so its identity rests on the process and the feedstock. Two suppliers can ship materially different material under one CAS number.

Indicates a polymeric substance containing no free-radical initiator in its Inventory name but is considered to cover the designated polymer made with any free-radical initiator regardless of the amount used.

Nothing directly. It widens what the listing covers, so a polymer made with a different initiator is still the listed substance rather than a new one.

Indicates a commenced PMN substance.

Nothing new. The substance already went through premanufacture review and someone filed a notice of commencement, which is why it is on the Inventory. It is an existing chemical and needs no new premanufacture notice.

Indicates a substance that is identified in a final Significant New Use Rule.

A significant new use notice at least 90 days before manufacture or processing for a designated new use, under 40 CFR 721.25(a). Distributing the substance can require a notice of its own, and exporting triggers TSCA section 12(b) notification.

Indicates a substance that is the subject of a TSCA section 5(e) order.

Compliance with the order, which sets terms for how the substance may be manufactured, processed or used. Orders commonly follow premanufacture review, which is why this flag usually sits beside PMN.

Indicates a polymer that has a number-average molecular weight greater than 1,000 and that was exempt under the 1984 polymer exemption rule.

Nothing directly. It records the basis on which the polymer entered the Inventory.

Indicates a substance that is identified in a proposed Significant New Use Rule.

No significant new use notice yet. Export notification under TSCA section 12(b) already applies, because 40 CFR 721.20 reaches substances named in a proposed rule as well as a final one.

Indicates a substance that is the subject of a proposed TSCA section 4 test rule or order.

Nothing yet. Worth tracking, because a final rule carries testing obligations and a lower reporting threshold.

Indicates a substance that is the subject of a final TSCA section 4 test rule or order.

Testing and submission of the resulting data, on the terms of the rule or order. It also drops the Chemical Data Reporting threshold from 25,000 to 2,500 pounds.

Indicates a substance that is the subject of a proposed or final TSCA section 6 risk management rule.

Compliance with the rule, which can restrict or prohibit manufacture, processing, use, distribution or disposal. Section 6 is the strongest tool TSCA gives EPA.

Indicates a polymer that is a polyester and that was exempt under the 1984 polymer exemption rule. The polyester is made only from reactants included in a specified list of low-concern reactants.

Nothing directly. It records the basis on which the polyester entered the Inventory.

Indicates a substance that is prohibited to be exported from the United States under TSCA section 12(c).

Do not export it. This is a prohibition rather than a notification requirement.

Indicates a substance that is the subject of a TSCA section 5(f) rule.

Compliance with the rule, issued where EPA found the substance presents an unreasonable risk.

Indicates a polymer that has a number-average molecular weight of greater than or equal to 1,000 daltons and less than 10,000 daltons and that is exempt under the 1995 polymer exemption rule.

Nothing directly. The exemption carries oligomer content conditions: under 10 percent by weight below 500 daltons and under 25 percent below 1,000.