NSPS Notebook
Secondary Emissions from Basic Oxygen Process Steelmaking Facilities -  Subpart Na

Applicability: eCFR Subpart Na [ecfr.gov]

This subpart applies to:
  1. Affected facilities at iron and steel plants that commence construction, modification, or reconstruction after Jan 20, 1983.
Affected facilities:
  1. Top-blown basic oxygen process furnaces (BOPFs).
  2. Hot metal transfer stations and skimming stations used with bottom-blown or top-blown BOPFs.

Any BOPF subject to this subpart are also subject to the parts of NSPS N that apply to affected facilities that commenced construction, modification, or reconstruction after January 20, 1983.
Known Sources in NDEE Jurisdiction:
Date of Original Final Rule: 1/2/86
Amendments Dates: 10/17/2000
State Regulations: Title 129, Chapter 12, Section 001.23

Previously: Chapter 18, Section 001.49
Federal Regulations: 40 CFR 60.140a
Related Rules:

NSPS - 40 CFR Part 60

Subpart N - Secondary emissions from basic oxygen process
Subpart AA - Electric arc furnaces (EAF)
Subpart AAa - EAF and argon-oxygen decarburization vessels

NESHAP - 40 CFR Part 63
Subpart CCC - Steel pickling plants
Subpart EEEEE - Iron and steel foundries
Subpart FFFFF - Integrated iron and steel
Subpart YYYYY - EAF
Subpart ZZZZZ - Iron and steel foundries
Regulations and Federal Registers: eCFR Subpart Na [ecfr.gov]
FAQs, Fact Sheets, and Rule Summaries: Rule Flowchart - Texas CEQ [tceq.state.tx.us]
Other Information and Resources:
Page Last Updated: 12/20/22