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Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR Table 25 to Subpart G of Part 63: Table 25 to Subpart G of Part 63—Effective Column Diameter (Fc)

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Where this section sits in the code
  1. Title 40—Protection of Environment
  2. CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
  3. SUBCHAPTER C—AIR PROGRAMS
  4. PART 63—NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES
  5. Subpart G—National Emission Standards for Hazardous Air Pollutants From the Synthetic Organic Chemical Manufacturing Industry for Process Vents, Storage Vessels, Transfer Operations, and Wastewater

Column type Fc (feet)

9-inch by 7-inch built-up columns 1.1

8-inch-diameter pipe columns 0.7

No construction details known 1.0

Collected 2026-08-27T02:26:04Z. Source file · JSON

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