EPA Lets Missouri Run Part of the Accident-Prevention Program for Agricultural Anhydrous Ammonia Sites
AI-generated summary for informational purposes only. Not legal advice. See the original source for the authoritative text.
This rule lets Missouri take the lead on enforcing part of the federal accident-prevention program for agricultural anhydrous ammonia facilities that store 10,000 pounds or more of ammonia used as fertilizer or for fertilizer production. Missouri will handle inspections, record checks, audits, compliance help, outreach, and enforcement for those sites. The EPA still keeps control over other regulated chemicals at those facilities, any ammonia that does not meet the agricultural definition, and all other Risk Management Program facilities in Missouri. Companies covered by the Missouri rule should treat it as federally enforceable starting May 29, 2026, and confirm their accident-prevention programs match the state requirements.
AI-generated summary. May contain errors. Refer to official sources for legal decisions.
Key Changes
- EPA approved Missouri's request to enforce part of the Clean Air Act Risk Management Program for agricultural anhydrous ammonia facilities.
- Missouri now leads inspections, record reviews, audits, compliance assistance, outreach, and enforcement for covered agricultural ammonia sites.
- EPA kept authority over other regulated chemicals at those facilities, non-agricultural ammonia, and all other Risk Management Program facilities in Missouri.
Obligations
What this law requires
Affected agricultural anhydrous ammonia facilities in Missouri that use, store, or sell agricultural anhydrous ammonia at or above the 10,000-pound threshold must comply with Missouri’s incorporated Chemical Accident Prevention for Agricultural Anhydrous Ammonia requirements, which replace the federal RMP provisions for that delegated subset.
Covered facilities must follow the applicable state accident-prevention program requirements in 10 CSR 10-6.255, including the requirements incorporated by reference into 40 CFR part 63.
Facilities subject to the Missouri delegated program must undergo and support on-site inspections, recordkeeping reviews, audits, compliance assistance/outreach, and enforcement activities conducted by Missouri authorities.
If a facility stores 10,000 pounds or more of agricultural anhydrous ammonia, it must maintain compliance with the RMP provisions applicable to that regulated agricultural ammonia program under the state rule.
Facilities must continue to treat any anhydrous ammonia that does not meet the definition of agricultural anhydrous ammonia as subject to EPA-retained federal RMP authority, not the delegated Missouri program.