You must meet the compliance options and operating requirements described in tables 1A, 1B, and 2 to this subpart by using one or more of the compliance options listed in paragraphs (a) and (b) of this section. You must meet the compliance options in tables 1C through 1E to this subpart according to paragraph (d) of this section. The process units subject to the compliance options are listed in tables 1A through 1E to this subpart and are defined in § 63.2292. You need only to meet one of the compliance options outlined in paragraph (a) or (b) of this section for each process unit. You cannot combine compliance options in paragraphs (a) and (b) of this section for a single process unit. (For example, you cannot use a production-based compliance option in paragraph (a) of this section for one vent of a veneer dryer and an add-on control system compliance option in paragraph (b) of this section for another vent on the same veneer dryer. You must use either the production-based compliance option or an add-on control system compliance option for the entire dryer.)

(a) Production-based compliance options. You must meet the production-based total HAP compliance options in Table 1A to this subpart and the applicable operating requirements in Table 2 to this subpart. You may not use an add-on control system or wet control device to meet the production-based compliance options.

(b) Compliance options for add-on control systems. You must use an emissions control system and demonstrate that the resulting emissions meet the compliance options and operating requirements in Tables 1B and 2 to this subpart. If you own or operate a reconstituted wood product press at a new or existing affected source or a reconstituted wood product board cooler at a new affected source, and you choose to comply with one of the concentration-based compliance options for a control system outlet (presented as option numbers 2, 4, and 6 in Table 1B to this subpart), you must have a capture device that either meets the definition of wood products enclosure in § 63.2292 or achieves a capture efficiency of greater than or equal to 95 percent.

(c) [Reserved]

(d) Additional compliance requirements. After July 6, 2026, you must comply with the compliance options in tables 1C through 1E to this subpart and associated operating limits in table 2 to this subpart as specified in paragraphs (d)(1) through (6) of this section.

(1) Process units at an affected source that commenced construction or reconstruction on or before May 18, 2023, must comply with the compliance options in table 1C to this subpart on and after July 6, 2029.

(2) Process units at an affected source that commenced construction or reconstruction after May 18, 2023, must comply with the compliance options in table 1C to this subpart beginning on July 6, 2026, or upon initial startup, whichever is later.

(3) Direct-wood fired PCWP dryers at an affected source that commenced construction or reconstruction on or before May 18, 2023, must comply with the compliance options in table 1D to this subpart on and after July 6, 2029. In addition to the limits in table 1D to this subpart, direct wood-fired green rotary dryers that commenced construction or reconstruction on or before May 18, 2023, must limit emissions of dioxins and furans toxic equivalency (TEQ) to no more than 1.3E-09 pounds per oven dried ton (lb/ODT) or 1.7E-01 nanogram per dry standards cubic meter (ng/dscm) on and after July 6, 2029.

(4) Direct-wood fired PCWP dryers at an affected source that commenced construction or reconstruction after May 18, 2023, must comply with the compliance options in table 1E to this subpart beginning on July 6, 2026, or upon initial startup, whichever is later. In addition to the limits in table 1E to this subpart, direct wood-fired green rotary dryers that commenced construction or reconstruction after May 18, 2023, must limit emissions of dioxins and furans TEQ to no more than 4.4E-10 lb/ODT or 3.7E-02 ng/dscm on and after July 6, 2029.

(5) Mixed PCWP process streams (defined in § 63.2292) complying with the compliance options for add-on control systems in table 1B to this subpart according to paragraph (b) of this section before July 6, 2026, must continue to comply with the compliance options in table 1B to this subpart after July 6, 2026.

(6) Affected facilities may choose to comply with the add-on control system compliance options in table 1B to this subpart (and associated operating limits in table 2 to this subpart) instead of the compliance options in table 1C to this subpart for fiberboard mat dryer heated zones, press predryers, post-dryer atmospheric refiners, or multipurpose atmospheric refiners.

(e) Process unit bypass stack operating requirement. After July 6, 2026, you must comply with the operating requirement in table 2 to this subpart for process unit bypass stacks (defined in § 63.2292) by the compliance dates specified in § 63.2233(e).