NSPS Notebook
Industrial-Commercial-Institutional Steam Generating Units -  Subpart Db

Applicability: eCFR Subpart Db [ecfr.gov]

This subpart applies to:
  1. Steam generating units that commence construction, modification, or reconstruction after June 19, 1984; and have a heat input capacity from fuels combusted in the steam generating unit of more than 29 MW (100 MMbtu/hr).

Not subject to this subpart:
  1. Steam generating units subject to NSPS Da.
  2. Heat recovery steam generators associated with stationary combustion turbines that are subject to NSPS KKKK.
  3. Any units subject to NSPS Cb, Ea, Eb, AAAA, BBBB, or CCCC.
  4. Any change to an existing unit for the sole purpose of combusting gases containing total reduced sulfur (TRS) is not considered a modification and is not subject to this subpart.
  5. Temporary boilers are not subject to this subpart.
Known Sources in NDEE Jurisdiction:
Date of Original Final Rule: 12/16/87
Amendments Dates: 02/27/2014 (79 FR 11227)
02/16/2012 (77 FR 9303)
01/20/2011 (76 FR 3517)
01/28/2009 (74 FR 5072)
06/13/2007 (72 FR 32710)
02/27/2006 (71 FR 9866)
07/07/2004 (69 FR 40770)
10/01/2001 (66 FR 49830)
04/10/2001 (66 FR 18546)
10/17/2000 (65 FR 61744)
03/13/2000 (65 FR 13243)
02/12/1999 (64 FR 7464)
09/16/1998 (63 FR 49454)
10/08/1997 (62 FR 52641)
03/29/1996 (61 FR 14031)
05/30/1995 (60 FR 28062)
05/07/1990 (55 FR 18876)
02/14/1990 (55 FR 5212)
12/18/1989 (54 FR 51819)
State Regulations: Title 129 Chapter 18, Section 001.22 (as amended as of 7/1/2009)
Federal Regulations: 40 CFR 60.40b
Related Rules:

NSPS - 40 CFR Part 60

Subparts D, Da, & Dc - Steam Generating Units
Subparts J and Ja - Petroleum Refineries
Subparts Cb, Ea, Eb, AAAA, BBBB - Municipal Waste Combustors
Subpart CCCC - Commercial/Industrial Solid Waste Incinerators
Subpart KKKK - Stationary Combustion Turbines

NESHAP - 40 CFR Part 63
Subpart DDDDD - Major Source Boilers & Process Heaters
Subpart JJJJJJ - Area Source Boilers
Subpart UUUUU - Electric Utilities
Regulations and Federal Registers: eCFR Subpart Db [ecfr.gov]

(See attached file: D-Da-Db-Dc - Fed. Reg. 2012-02-16 - Final Rule.pdf)

(See attached file: D-Da-Db-Dc - Fed. Reg. 2011-05-03 - Proposed Rule.pdf)

(See attached file: D-Da-Db-Dc - Fed. Reg. 2011-01-20 - Direct Final and Proposal.pdf)

(See attached file: D-Da-Db-Dc - Fed. Reg. 2009-01-28 - Final Rule.pdf)

(See attached file: D-Da-Db-Dc - Fed. Reg. 2007-06-13 - Final Rule.pdf)

(See attached file: D-Db - Fed. Reg. 1986-11-25 - Final Rule.pdf)

SizeFile Name
1,312 KB D-Da-Db-Dc - Fed. Reg. 2012-02-16 - Final Rule.pdf
1,157 KB D-Da-Db-Dc - Fed. Reg. 2011-05-03 - Proposed Rule.pdf
170 KB D-Da-Db-Dc - Fed. Reg. 2011-01-20 - Direct Final and Proposal.pdf
188 KB D-Da-Db-Dc - Fed. Reg. 2009-01-28 - Final Rule.pdf
454 KB D-Da-Db-Dc - Fed. Reg. 2007-06-13 - Final Rule.pdf
12,734 KB D-Db - Fed. Reg. 1986-11-25 - Final Rule.pdf
FAQs, Fact Sheets, and Rule Summaries: EPA's Boiler Website [epa.gov] - contains federal register notices and technical information

EPA Sponsored Combustion Portal [combustionportal.org] - Federal & state compliance information & sustainability content for combustion processes

Rule Flowchart - Texas CEQ [tceq.state.tx.us]

Other Information and Resources:
Notes:
Page Last Updated: 12/23/19