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

40 CFR Table 1D to Subpart DDDD of Part 63: Table 1D to Subpart DDDD of Part 63—Compliance Options Applicable On and After July 6, 2029, for Direct Wood-Fired PCWP Dryers at Affected Sources That Commenced Construction or Reconstruction On or Before May 18, 2023

Table 1D to Subpart DDDD of Part 63—Compliance Options Applicable On and After July 6, 2029, for Direct Wood-Fired PCWP Dryers at Affected Sources That Commenced Construction or Reconstruction On or Before May 18, 2023
For the following types of direct wood-fired PCWP dryers . . . You must meet the PM (HAP metal) limit You must meet the Hg limit You must meet the HCl limit You must meet the PAH limit
Rotary strand dryer 9.9E-02 lb/ODT or 3.6E-03 gr/dscf 1.7E-05 lb/ODT or 8.4E-04 mg/dscm 5.8E-03 lb/ODT or 1.5E-01 mg/dscm 1.1E-04 lb/ODT or 9.9E-03 mg/dscm.
Green rotary dryer 2.9E-01 lb/ODT or 5.2E-03 gr/dscf 1.5E-05 lb/ODT or 1.3E-03 mg/dscm 1.1E-02 lb/ODT or 1.7 mg/dscm 3.2E-04 lb/ODT or 4.2E-02 mg/dscm.
Dry rotary dryer 6.5E-01 lb/ODT or 9.8E-02 gr/dscf 1.0E-05 lb/ODT or 8.4E-04 mg/dscm 1.1E-03 lb/ODT or 9.0E-02 mg/dscm 4.6E-05 lb/ODT or 4.1E-03 mg/dscm.
Primary tube dryer or secondary tube dryer 3.1E-01 lb/ODT or 3.1E-03 gr/dscf 3.9E-05 lb/ODT or 1.6E-03 mg/dscm 6.4E-03 lb/ODT or 7.4E-01 mg/dscm 3.0E-04 lb/ODT or 1.6E-03 mg/dscm.
Softwood veneer dryer heated zones 7.2E-02 lb/MSF 3/8″ or 1.5E-02 gr/dscf 5.8E-05 lb/MSF 3/8″ or 4.1E-02 mg/dscm NA NA.
Notes: lb/ODT = pounds per oven dried ton, gr/dscf = grains per dry standard cubic foot, mg/dscm = milligrams per dry standard cubic meter. See § 63.2240(d)(3) for dioxin and furan TEQ limit for direct wood-fired green rotary dryers.

Where this section sits in the code

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

For the following types of direct wood-fired PCWP dryers . . . You must meet the PM (HAP metal) limit You must meet the Hg limit You must meet the HCl limit You must meet the PAH limit

Rotary strand dryer 9.9E-02 lb/ODT or 3.6E-03 gr/dscf 1.7E-05 lb/ODT or 8.4E-04 mg/dscm 5.8E-03 lb/ODT or 1.5E-01 mg/dscm 1.1E-04 lb/ODT or 9.9E-03 mg/dscm.

Green rotary dryer 2.9E-01 lb/ODT or 5.2E-03 gr/dscf 1.5E-05 lb/ODT or 1.3E-03 mg/dscm 1.1E-02 lb/ODT or 1.7 mg/dscm 3.2E-04 lb/ODT or 4.2E-02 mg/dscm.

Dry rotary dryer 6.5E-01 lb/ODT or 9.8E-02 gr/dscf 1.0E-05 lb/ODT or 8.4E-04 mg/dscm 1.1E-03 lb/ODT or 9.0E-02 mg/dscm 4.6E-05 lb/ODT or 4.1E-03 mg/dscm.

Primary tube dryer or secondary tube dryer 3.1E-01 lb/ODT or 3.1E-03 gr/dscf 3.9E-05 lb/ODT or 1.6E-03 mg/dscm 6.4E-03 lb/ODT or 7.4E-01 mg/dscm 3.0E-04 lb/ODT or 1.6E-03 mg/dscm.

Softwood veneer dryer heated zones 7.2E-02 lb/MSF 3/8″ or 1.5E-02 gr/dscf 5.8E-05 lb/MSF 3/8″ or 4.1E-02 mg/dscm NA NA.

Notes: lb/ODT = pounds per oven dried ton, gr/dscf = grains per dry standard cubic foot, mg/dscm = milligrams per dry standard cubic meter. See § 63.2240(d)(3) for dioxin and furan TEQ limit for direct wood-fired green rotary dryers.

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

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