40 CFR § 63.1093 - Does this subpart apply to my waste streams?

---
identifier: "/us/cfr/t40/s63.1093"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 63.1093 - Does this subpart apply to my waste streams?"
title_number: 40
title_name: "Protection of Environment"
section_number: "63.1093"
section_name: "Does this subpart apply to my waste streams?"
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "C"
subchapter_name: "AIR PROGRAMS"
part_number: "63"
part_name: "NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7401"
regulatory_source: "57 FR 61992, Dec. 29, 1992, unless otherwise noted."
cfr_part: "63"
---


# 63.1093 Does this subpart apply to my waste streams?

The waste stream provisions of this subpart apply to your waste streams if you own or operate an ethylene production facility expressly referenced to this subpart XX from subpart YY of this part. The provisions of subpart A (General Provisions) of this part do not apply to this subpart except as specified in a referencing subpart.