# Air Plan Approval; Missouri; Control of Emissions During Petroleum Liquid Storage, Loading, and Transfer

**Action Urgency Score:** 30/100

| Field | Value |
|---|---|
| Agency | Environmental Protection Agency |
| Type | Final rule |
| Action | Final rule. |
| Published | 2026-07-23 |
| Effective | 2026-08-24 |
| Significant | No |
| CFR parts | 40 CFR 52 |
| Summary | The Environmental Protection Agency (EPA) is taking final action to approve revisions to the Missouri State Implementation Plan (SIP) related to the control of emissions during petroleum liquid storage, loading, and transfer in the St. Louis area. The revisions to this rule include revising the tank size threshold applicability of the rule, adding incorporations by reference to other State rules, adding definitions specific to the rule, revising unnecessarily restrictive or duplicative language, adding a streamlined process for modifications to vapor recovery systems at gasoline dispensing fac |
| Document number | 2026-14880 |

## Why this score
- Final rule.

Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/07/23/2026-14880/air-plan-approval-missouri-control-of-emissions-during-petroleum-liquid-storage-loading-and-transfer). Last refreshed: 2026-11-04T09:17:43.641Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.