# Clean Water Act Hazardous Substance Worst Case Discharge Planning Regulations

> **EPA** · Rulemaking · Modified 2026-04-13T20:48:51Z

## Docket
- **Docket ID:** EPA-HQ-OLEM-2021-0585
- **Agency:** EPA
- **Type:** Rulemaking
- **Last modified:** 2026-04-13T20:48:51Z

## Source
- [regulations.gov docket](https://www.regulations.gov/docket/EPA-HQ-OLEM-2021-0585)
- [Public comments](https://www.regulations.gov/docket/EPA-HQ-OLEM-2021-0585/comments)

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