NSPS Notebook
Calciners and Dryers in Mineral Industries -  Subpart UUU

Applicability: eCFR Subpart UUU [ecfr.gov]

This subpart applies to:
  1. Affected facilities at mineral processing plants that commence construction, modification, or reconstruction after Apr 23, 1986.
Affected facilities:
  1. Calciners;
  2. Dryers.
For the brick and related clay products industry, only the calcining and drying of raw materials prior to firing of the brick are covered.

Not subject to this subpart:
  1. Affected facilities subject to NSPS LL;
  2. Vertical shaft kilns in the magnesium compound industry;
  3. Chlorination-oxidation processes in the titanium oxide industry;
  4. Coating kilns, mixers, and aerators in the roofing granules industry;
  5. Tunnel kilns, tunnel dryers, apron dryers, and grinding equipment that also dries process material in any of the 17 mineral industries (per 40 CFR 60.731).
Known Sources in NDEE Jurisdiction:
Date of Original Final Rule: 9/28/92
Amendments Dates: 10/17/2000 (65 FR 61744)
07/29/1993 (58 FR 40591)
State Regulations: Title 129, Chapter 12, Section 001. 72

Previously: Chapter 18, Section 001.07
Federal Regulations: 40 CFR 60.730
Related Rules:

NSPS - 40 CFR Part 60

Subpart HH - Lime mfg - rotary lime kiln
Subpart LL - Metallic mineral processing plants
Subpart NN - Phosphate rock plants
Subpart Y - Coal preparation and processing plants
Subpart OOO - Non-metallic mineral processing plants

NESHAP - 40 CFR Part 63
Subpart RRRRR - Taconite iron ore processing
Regulations and Federal Registers: eCFR Subpart UUU [ecfr.gov]

(See attached file: 3O & 3U Fed. Reg. 2009-04-28 - Final Rule.pdf)

(See attached file: 3O & 3U Fed. Reg. 2008-04-22 - Proposed Rule.pdf)

SizeFile Name
192 KB 3O & 3U Fed. Reg. 2009-04-28 - Final Rule.pdf
127 KB 3O & 3U Fed. Reg. 2008-04-22 - Proposed Rule.pdf
FAQs, Fact Sheets, and Rule Summaries: Flowchart TCEQ [tceq.texas.gov]
Other Information and Resources:
Page Last Updated: 12/21/22