EPA Tweaks Missouri's Oil Spill Rules to Match Kansas City Standards
Published Date: 4/23/2026
Proposed Rule
Summary
The EPA is proposing to approve updates to Missouri’s rules for controlling pollution from storing, loading, and transferring petroleum liquids in the St. Louis area. These changes make the rules clearer, easier to follow, and match similar rules in Kansas City, without adding extra costs or delays. Businesses involved in these activities should note that comments on the proposal are due by May 26, 2026.
Analyzed Economic Effects
3 provisions identified: 3 benefits, 0 costs, 0 mixed.
Permitting Removed for Vapor Recovery Modifications
Missouri added a streamlined process for modifications to vapor recovery systems at gasoline dispensing facilities and thereby eliminated the associated permitting requirement. This change applies to gasoline dispensing facilities in the St. Louis metropolitan area and is part of the March 7, 2019 (supplemented August 1, 2019) SIP submission.
Smaller Tank Size Threshold Raised
Missouri changed which smaller petroleum storage tanks the rule covers from 500–1,000 gallons to 550–1,000 gallons. This official change affects the rule that applies to petroleum liquid storage in the St. Louis metropolitan area and uses the stated tank size ranges of 500, 550, and 1,000 gallons.
Rule Language Clarified; No Added Costs
The revisions clarify testing and reporting language, add rule-specific definitions, remove duplicative wording, and make the St. Louis rule consistent with the Kansas City rule. The EPA notes these changes make the rules clearer and easier to follow and that they do not add extra costs or delays.
Your PRIA Score
Personalized for You
How does this regulation affect your finances?
Sign up for a PRIA Policy Scan to see your personalized alignment score for this federal register document and every other regulation we track. We analyze your financial profile against policy provisions to show you exactly what matters to your wallet.
Key Dates
Department and Agencies
Related Federal Register Documents
2026-08750 — Extension of Postponement of Effectiveness for Certain Provisions of Trichloroethylene (TCE); Regulation Under the Toxic Substances Control Act (TSCA)
The EPA is delaying some rules about the chemical TCE until court decisions are finished. This delay affects certain allowed uses of TCE that had special workplace rules. Businesses using TCE under these exemptions get more time before new restrictions kick in, helping them avoid sudden costs or changes.
2026-07061 — Hazardous and Solid Waste Management System: Disposal of Coal Combustion Residuals From Electric Utilities; Legacy/CCRMU Amendments
The EPA is updating rules on how electric utilities handle coal waste to make cleanup safer and smarter. These changes affect power plants by easing some rules, adding new ways to monitor and close waste sites, and allowing more beneficial reuse of coal waste. Comments are open until June 12, 2026, so utilities and communities can weigh in before the new rules take effect.
2026-06808 — Reconsideration of Standards of Performance for New, Reconstructed, and Modified Sources and Emissions Guidelines for Existing Sources: Oil and Natural Gas Sector Climate Review
The EPA is making some smart tweaks to rules for oil and natural gas companies about how they handle gas flaring and monitoring. These changes fix technical details without changing pollution limits and bring back some important reporting rules accidentally removed last year. The new rules kick in on June 8, 2026, so companies should get ready to follow the updated steps without extra costs.
2026-06275 — Renewable Fuel Standard (RFS) Program: Standards for 2026 and 2027, Partial Waiver of 2025 Cellulosic Biofuel Volume Requirement, and Other Changes
The EPA just set new rules for renewable fuels in 2026 and 2027, including how much biofuel must be used. They’re also easing the 2025 cellulosic biofuel goals because production fell short and removing renewable electricity from the program. These changes affect fuel producers and sellers, kick in mostly mid-2026, and aim to keep cleaner fuels flowing without breaking the bank.
2026-05167 — National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review Reconsideration
The EPA is updating rules for sterilization facilities that use ethylene oxide, a chemical that can be harmful if not controlled. They’re rolling back some strict standards from 2024, fixing technical errors, and changing how facilities prove they’re following the rules. If you run or work with these facilities, get ready for new deadlines and ways to stay in compliance by mid-2026.
2026-04646 — Standards of Performance for New Stationary Sources and Emission Guidelines for Existing Sources: Large Municipal Waste Combustors Voluntary Remand Response and Five-Year Review
The EPA is updating pollution rules for big trash-burning plants to cut harmful emissions like lead, mercury, and dioxins. These changes affect both new and existing facilities, tighten limits, remove some loopholes, and improve reporting, all starting May 11, 2026. This update will clean up the air by reducing over 3,200 tons of pollution each year, helping communities breathe easier without breaking the bank.
Previous / Next Documents
Previous: 2026-07905 — Air Plan Approval; Michigan; 2015 Ozone Moderate Reasonably Available Control Technology
The EPA is giving folks 30 more days to share their thoughts on Michigan’s new air pollution rules aimed at cutting smog in parts of Western Michigan. These rules focus on reducing harmful chemicals from products and coatings to help meet clean air goals. If you live or work in Berrien, Allegan, or Muskegon counties, this could affect you soon—so don’t miss the May 26, 2026 deadline to speak up!
Next: 2026-07909 — Fisheries of the Northeastern United States; Monkfish; Framework Adjustment 17
Fishermen and seafood businesses in the Northeast will see new rules for catching monkfish starting in 2026. These changes set catch limits for the next three years, simplify how overfishing is handled, and add backup plans to keep the fishery healthy. The goal? Protect monkfish populations while keeping the fishing industry strong—so everyone can enjoy seafood for years to come!