Code of Federal Regulations > Title 40 > Chapter I > Part 63 > Subpart DDDD > Appendix - Table 1A to Subpart DDDD of Part 63

Regulations last checked for updates: May 15, 2024

Title 40 - Protection of Environment last revised: May 13, 2024

Appendix - 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 HAP ^a 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.

authority: 42 U.S.C. 7401

source: 57 FR 61992, Dec. 29, 1992, unless otherwise noted.