40 CFR § 420.11 - Specialized definitions.
---
identifier: "/us/cfr/t40/s420.11"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 420.11 - Specialized definitions."
title_number: 40
title_name: "Protection of Environment"
section_number: "420.11"
section_name: "Specialized definitions."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "N"
subchapter_name: "EFFLUENT GUIDELINES AND STANDARDS"
part_number: "420"
part_name: "IRON AND STEEL MANUFACTURING POINT SOURCE CATEGORY"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1311, 1314, 1316, 1317, 1318, 1342, and 1361."
regulatory_source: "47 FR 23284, May 27, 1982, unless otherwise noted."
cfr_part: "420"
---
# 420.11 Specialized definitions.
(a) For the cokemaking subcategory, the term *product* means the production of coke plus coke breeze.
(b) The term *by-product cokemaking* means operations in which coal is heated in the absence of air to produce metallurgical coke (furnace coke and foundry coke), and the recovery of by-products derived from the gases and liquids that are driven from the coal during cokemaking.
(c) The term *cokemaking—non-recovery* means cokemaking operations for production of metallurgical coke (furnace coke and foundry coke) without recovery of by-products. Does not include co-generation facilities located at non-recovery coke facilities.
(d) The term *coke* means a processed form of coal that serves as the basic fuel for the smelting of iron ore.
(1) The term *foundry coke* means coke produced for foundry operations.
(2) The term *furnace coke* means coke produced for blast furnace operations
(e) The term *merchant coke plant* means by-product cokemaking operations that provide more than fifty percent of the coke produced to operations, industries, or processes other than ironmaking blast furnaces associated with steel production.
(f) The term *iron and steel coke plant* means by-product cokemaking operations other than those at merchant coke plants.
(g) The term *coke oven gas wet desulfurization system* means those systems that remove sulfur and sulfur compounds from coke oven gas and generate process wastewater.
(h) The term *coke breeze* means fine coke particles.
(i) The term *indirect ammonia recovery system* means those systems that recover ammonium hydroxide as a by-product from coke oven gases and waste ammonia liquors.
(j) The term *iron and steel* means those by-product cokemaking operations other than merchant cokemaking operations.
(k) The term *merchant* means those by-product cokemaking operations that provide more than fifty percent of the coke produced to operations, industries, or processes other than ironmaking blast furnaces associated with steel production.
(l) The term *O&G (as HEM)* means total recoverable oil and grease measured as n-hexane extractable material.
(m) The term *wet desulfurization system* means those systems that remove sulfur compounds from coke oven gases and produce a contaminated process wastewater.
[67 FR 64261, Oct. 17, 2002]