Methyl isocyanate

For Methyl isocyanate, cas no. is 624-83-9; cercla rq (lbs) is 10; rcra waste number is P064; regulatory categories is 3,4, verified against its source on 2026-08-05.

Substance: Methyl isocyanate
CAS No.: 624-83-9
CERCLA RQ (lbs): 10
RCRA waste number: P064
Regulatory categories: 3,4
EPCRA TPQ (lbs): 500 per ecfr.gov
EPCRA RQ (lbs): 10 per ecfr.gov

Sourceecfr.gov

Verified2026-08-05

Review by2027-08-05

DatasetUS federal chemical regulatory reporting thresholds by program (CERCLA, EPCRA, CAA)

What the source says

Methyl isocyanate | 624-83-9 | 3,4 | P064 | 10 (4.54)

— ecfr.gov, retrieved 2026-08-05

What ecfr.gov says

10 | 500 | 624-83-9 | Methyl Isocyanate |

— ecfr.gov, retrieved 2026-08-05

Sources

ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-302/section-302.4
ecfr.govhttps://www.ecfr.gov/current/title-40/chapter-I/subchapter-J/part-355

Last verified against source: 2026-08-05. Scheduled for re-check by: 2027-08-05. This page as Markdown · OKF bundle · full dataset as JSON.