1. (a) Abbreviations and symbols of units of measure.

   1. (1) Btu - British thermal unit
   2. (2) cm/sec - centimeter per second
   3. (3) CO₂e - carbon dioxide equivalent
   4. (4) dscf - dry cubic feet at standard conditions
   5. (5) dscm - dry cubic meter at standard conditions
   6. (6) ft/min - feet per minute
   7. (7) gal - gallon
   8. (8) gal/d - gallons per day
   9. (9) gal/yr - gallons per year
   10. (10) gr/dscf - grains per dry standard cubic foot
   11. (11) hr - hour
   12. (12) Hg - mercury
   13. (13) hp - horsepower
   14. (14) H₂O - water
   15. (15) H₂S - hydrogen sulfide
   16. (16) H₂SO₄ - sulfuric acid
   17. (17) kg - kilogram
   18. (18) kg/metric ton - kilograms per metric ton
   19. (19) kPa - kilopascals
   20. (20) l - liter
   21. (21) l/yr - liters per year
   22. (22) LT/D - long tons per day
   23. (23) lb/wk - pounds per week
   24. (24) lb - pound
   25. (25) lbs/hr - pounds per hour
   26. (26) m³ - cubic meter
   27. (27) mg/dscm - milligrams per dry standard cubic meter
   28. (28) MMBTU/hr - million british thermal units per hour
   29. (29) Mg - megagram - 10⁶ gram
   30. (30) Mg/yr - megagrams per year
   31. (31) mg/l - milligrams per liter
   32. (32) m/min - meter per minute
   33. (33) ng/dscm - nanograms per dry standard cubic meter
   34. (34) ng/J - nanograms per Joule
   35. (35) oz/in² - ounce per square inch
   36. (36) ppm - parts per million
   37. (37) psia - pounds per square inch absolute
   38. (38) psig - pounds per square inch gage
   39. (39) ppmv - parts per million by volume
   40. (40) SO₂ - sulfur dioxide
   41. (41) TPY - tons per year
   42. (42) µg/m³ - micrograms per cubic meter

2. (b) Acronyms.

   1. (1) A.I.S.I. - American Iron and Steel Institute
   2. (2) A.S.M.E. - American Society of Mechanical Engineers
   3. (3) A.S.T.M. - American Society for Testing and Materials
   4. (4) BACT - Best Available Control Technology
   5. (5) CEM - Continuous Emission Monitor
   6. (6) CFR - Code of Federal Regulations
   7. (7) COM - Continuous Opacity Monitor
   8. (8) DEQ - Department of Environmental Quality
   9. (9) EPA - Environmental Protection Agency
   10. (10) GHG - Greenhouse Gas
   11. (11) HAP - Hazardous Air Pollutants
   12. (12) HMIWI - Hospital/Medical/Infectious Waste Incinerator
   13. (13) MACT - Maximum Achievable Control Technology
   14. (14) MSW - Municipal Solid Waste
   15. (15) MWC - Municipal Waste Combustors
   16. (16) NAAQS - National Ambient Air Quality Standards
   17. (17) NESHAP - National Emissions Standards for Hazardous Air Pollutants
   18. (18) NSPS - New Source Performance Standards
   19. (19) NSR - New Source Review
   20. (20) OAC - Oklahoma Administrative Code
   21. (21) PBR - Permit by Rule
   22. (22) PM - Particulate Matter
   23. (23) PSD - Prevention of Significant Deterioration
   24. (24) SIC - Standard Industrial Classification
   25. (25) SIP - State Implementation Plan
   26. (26) TSP - Total Suspended Particulates
   27. (27) VOC - Volatile Organic Compound
   28. (28) 27A O.S. - Title 27A Oklahoma Statutes

Added at 20 Ok Reg 1576, eff 6-12-03

Amended at 26 Ok Reg 1140, eff 7-1-09

Amended at 28 Ok Reg 1179, eff 7-1-11

Amended at 38 Ok Reg 1768, eff 9-15-21