# Azinphos-Methyl — US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA) For Azinphos-Methyl, cas no. is 86-50-0; epcra tpq (lbs) is 10/10,000; epcra rq (lbs) is 1, verified against its source on 2026-08-05. - **Substance:** Azinphos-Methyl _(verified: appears in the quote below)_ - **CAS No.:** 86-50-0 _(verified: appears in the quote below)_ - **EPCRA TPQ (lbs):** 10/10,000 _(verified: appears in the quote below)_ - **EPCRA RQ (lbs):** 1 _(verified: appears in the quote below)_ - **CERCLA RQ (lbs):** 1 _(per ecfr.gov, not stated by the source above)_ - **Regulatory categories:** 1 _(per ecfr.gov, not stated by the source above)_ ## What the source says > 86-50-0 | Azinphos-Methyl | | 1 | 10/10,000 | ## What ecfr.gov says > Guthion | 86-50-0 | 1 | | 1 (0.454) Source: https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4 ## Source - https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355 - https://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4 Last verified: 2026-08-05. Review by: 2027-08-05. Part of [US federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)](https://referencesource.org/chemical-regulatory-reporting-thresholds/).