1. A. In this chapter, the following terms have the meanings indicated.

2. B. Terms Defined.

   1. (1) “Cold rolling operation” means an installation that rolls steel that is not preheated.
   2. (2) “Continuous casting” means a method of pouring liquid steel into semifinished shapes.
   3. (3) “Good management practices” means operating and maintenance practices for controlling processes within design conditions and minimizing air pollution to the extent practicable with existing equipment.
   4. (4) “Hot dip coating” means a molten inorganic formulation used for coating on strip steel.
   5. (5) “Hot rolling operation” means an installation that rolls preheated steel.

   6. (6) Iron and Steel Production Installations.

      1. (a) “Iron and steel production installations” means those installations and buildings used in the production of iron and steel.
      2. (b) As used in this chapter, the term “installation” means an iron and steel production installation.

      3. (c) “Iron and steel production installations” include the following:

         1. (i) Materials-handling systems, including systems for iron ore, ore pellets, coal, limestone, fluxes, sinter, coke, steel-alloying ingredients, slag, and dust handling;
         2. (ii) Blast furnace iron making;
         3. (iii) Sintering plants;
         4. (iv) Basic oxygen furnace, open hearth furnace, and electric furnace steel-making equipment;
         5. (v) Coke ovens;
         6. (vi) Molten material transfer and process operations, including teeming, tapping, reladling, and casting;
         7. (vii) Continuous casting equipment;
         8. (viii) Scarfing and other surface defect removal equipment;
         9. (ix) Blast furnace pig-casting equipment;
         10. (x) Scrap preparation equipment, including scrap melting and burning equipment;
         11. (xi) Molten metal desulfurization equipment;
         12. (xii) Raw material drying system;
         13. (xiii) Steel-cleaning equipment, including pickling; and
         14. (xiv) Steel-coating equipment.
   7. (7) “Opacity record” means the highest average of any 6 consecutive minutes of readings measured and calculated in the manner described in the Department's Technical Memorandum (TM) 91-01 Method 1004I.
   8. (8) “Tons of sinter produced” means the weight of sinter that is transferred to the blast furnace stockhouse during a calendar day.
   9. (9) “Venturi scrubber flow rate” means the water flow rate through the venturi scrubber.
   10. (10) “Venturi scrubber pressure drop” means the arithmetic difference between the static pressures of the gas stream at the inlet and the outlet of the venturi scrubber.

Authority: Environment Article, §§1-101, 1-404, 2-101—2-103, 2-301—2-303, 10-102, and 10-103, Annotated Code of Maryland

Effective date: July 18, 1980 (7:12 Md. R. 1148)

Regulation .04B amended effective June 8, 1981 (8:9 Md. R. 800)

Chapter revised effective October 10, 1981 (8:18 Md. R. 1480)

Regulation .02B amended effective February 25, 1983 (10:1 Md. R. 30)

Regulation .03B amended effective March 24, 1987 (14:4 Md. R. 419); January 5, 1988 (14:24 Md. R. 2555)

Regulation .07 amended effective February 10, 1984 (10:26 Md. R. 2341); July 2, 1985 (12:11 Md. R. 1049)

For the history of this subtitle before June 18, 1980, see the Administrative History of COMAR 26.11.01.

Chapter recodified from COMAR 10.18.10 to COMAR 26.11.10

Regulation .07 amended effective August 19, 1991 (18:16 Md. R. 1813); February 17, 1992 (19:3 Md. R. 306)

Chapter revised effective November 2, 1998 (25:22 Md. R. 1653)

Regulation .01 amended effective December 25, 2000 (27:25 Md. R. 2285)

Regulation .01B amended effective January 29, 2007 (34:2 Md. R. 138)

Regulation .03A amended effective November 24, 2003 (30:23 Md. R. 1653); January 29, 2007 (34:2 Md. R. 138)

Regulation .03C amended effective October 2, 2000 (27:19 Md. R. 1731)

Regulation .03D adopted effective January 29, 2007 (34:2 Md. R. 138)

Regulation .03D amended effective June 29, 2009 (36:13 Md. R. 901)

Regulation .05-1 adopted effective September 12, 2005 (32:18 Md. R. 1522)

Regulation .06 amended and recodified to Regulation .07, and new Regulation .06 adopted effective December 25, 2000 (27:25 Md. R. 2285)

Regulation .06C amended effective May 9, 2016 (43:9 Md. R. 531)