Every chemical swap that touches the US triggers a check against the EPA's TSCA Inventory: nearly 87,000 substances, tracked by regulatory flag. Michael's ARCO module runs this pre-screen automatically, in parallel with REACH, OFAC and CBAM.
Why It's Not Optional
About 42,600 are active (EPA, July 2025). The rest are inactive and need a Notice of Activity before reactivation.
EPA refreshes the inventory every January and July. A substance's status can change without your counterparty noticing.
Significant New Use Rules, test orders and Section 5 consent orders each carry their own compliance obligations.
A pre-screen, not a ruling. ARCO screens swaps against published regulatory and sanctions lists and gates the workflow on the result. It is not a legal determination, a regulatory filing, or a substitute for your compliance function's formal sign-off.
How ARCO Handles It
ARCO checks every commodity with a CAS number against the published EPA inventory and its regulatory flag codes before a swap can proceed.
ARCO confirms that the substance is on the TSCA Inventory and active. An inactive entry needs reactivation first.
SOURCE: EPA ChemView / CTX API (api-ccte.epa.gov)ARCO screens for the flag codes attached to the substance. They are Significant New Use Rules (S), test orders (T), Section 5(e) consent orders (E) and Section 5(f) rules (F).
CACHE TTL: 24 HOURSARCO records the result as a hashed compliance snapshot. It is valid for 72 hours. After that, the swap needs a new screen.
EXPIRY: 72 HOURSWhat You'll See
Substance active on the TSCA Inventory, no unresolved flag codes. Swap proceeds through the lifecycle.
A flag code that needs a compliance officer's review. Or a substance that EPA reclassified recently.
Substance inactive with no Notice of Activity on file, or subject to an active Section 5 restriction.
Coverage Detail
| Data source | What's checked | Refresh cycle |
|---|---|---|
| EPA TSCA Inventory | Active/inactive status across ~87,000 substances | Biannual (Jan / Jul) |
| EPA CTX API | Regulatory flag codes (S/T/E/F), cross-reference to REACH | Daily delta |
| Section 5(e)/(f) orders | Consent orders and rules attached to new or existing chemicals | On publication |
| Toxicity hazard summary | DTXSID-linked hazard data for informational review | Continuous |
Related Compliance
Request a walkthrough and watch a TSCA check run in the demo.