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 Code of Federal Regulations (Last Updated: November 8, 2024)
 Title 40 - Protection of Environment
 Chapter I - Environmental Protection Agency
 SubChapter C - Air Programs
 Part 63 - National Emission Standards for Hazardous Air Pollutants for Source Categories
 Subpart DDDD - National Emission Standards for Hazardous Air Pollutants: Plywood and Composite Wood Products

  Table 1A to Subpart DDDD of Part 63 - Production-Based Compliance Options  

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  • Table 1A to Subpart DDDD of Part 63 - Production-Based Compliance Options

    For the following process units . . . You must meet the following production-based compliance option (total HAPa basis) . . .
    (1) Fiberboard mat dryer heated zones (at new affected sources only) 0.022 lb/MSF 1⁄2″.
    (2) Green rotary dryers 0.058 lb/ODT.
    (3) Hardboard ovens 0.022 lb/MSF 1⁄8″.
    (4) Press predryers (at new affected sources only) 0.037 lb/MSF 1⁄2″.
    (5) Pressurized refiners 0.039 lb/ODT.
    (6) Primary tube dryers 0.26 lb/ODT.
    (7) Reconstituted wood product board coolers (at new affected sources only) 0.014 lb/MSF 3⁄4″.
    (8) Reconstituted wood product presses 0.30 lb/MSF 3⁄4″.
    (9) Softwood veneer dryer heated zones 0.022 lb/MSF 3⁄8″.
    (10) Rotary strand dryers 0.18 lb/ODT.
    (11) Secondary tube dryers 0.010 lb/ODT.

    a Total HAP, as defined in § 63.2292, includes acetaldehyde, acrolein, formaldehyde, methanol, phenol, and propionaldehyde. lb/ODT = pounds per oven-dried ton; lb/MSF = pounds per thousand square feet with a specified thickness basis (inches). Section 63.2262(j) shows how to convert from one thickness basis to another.

    Note: There is no production-based compliance option for conveyor strand dryers.