---
kind: "unit"
title: "40"
title_heading: "Protection of Environment"
key: "chI/subchN/part419"
level: "part"
label: "Part 419"
heading: "Petroleum Refining Point Source Category"
release: "ecfr-current"
date: "2026-08-27"
url: "https://uscodex.org/cfr/40/chI-subchN-part419"
sections_count: 40
---

# Part 419 — Petroleum Refining Point Source Category

Title 40 C.F.R. — Protection of Environment › Chapter I — Environmental Protection Agency › Subchapter N — Effluent Guidelines and Standards

## Contents

- [Subpart A — Topping Subcategory](/cfr/40/chI-subchN-part419-subpartA.md)
- [Subpart B — Cracking Subcategory](/cfr/40/chI-subchN-part419-subpartB.md)
- [Subpart C — Petrochemical Subcategory](/cfr/40/chI-subchN-part419-subpartC.md)
- [Subpart D — Lube Subcategory](/cfr/40/chI-subchN-part419-subpartD.md)
- [Subpart E — Integrated Subcategory](/cfr/40/chI-subchN-part419-subpartE.md)