Page 1 of 65

Subpart NNN—National Emission Standards for Hazardo us Air Pollutants for Wool Fiberglass Manufacturing
Contents Subpart NNN—National Emission Standards for Hazardo us Air Pollutants for Wool Fiberglass Manufacturing § 63.1380 Applicability. § 63.1381 Definitions. § 63.1382 Emission standards. § 63.1383 Monitoring requirements. § 63.1384 Performance test requirements. § 63.1385 Test methods and procedures. § 63.1386 Notification, recordkeeping, and reportin g requirements. § 63.1387 Compliance dates. § 63.1388 Implementation and enforcement. §§ 63.1389-63.1399 [Reserved] Appendix A to Subpart NNN of Part 63—Method for the Determination of LOI Appendix B to Subpart NNN of Part 63—Free Formaldeh yde Analysis of Insulation Resins by Hydroxylamine Hydrochloride Appendix C to Subpart NNN of Part 63—Method for the Determination of Product Density § 63.1380 Applicability. (a) Except as provided in paragraphs (b) and (c) of this section, the requirements of this subpart apply to the owner or operator of each wool fiberglass manufacturing faci lity that is a major source or is located at a facility that is a major

source. (b) The requirements of this subpart apply to emiss ions of hazardous air pollutants (HAPs), as measured accord ing to thePage 2 of 65

methods and procedures in this subpart, emitted fro m the following new and existing sources at a wool fiberg lass manufacturing facility subject to this subpart: (1) Each new and existing glass-melting furnace loc ated at a wool fiberglass manufacturing facility; (2) Each new and existing rotary spin wool fibergla ss manufacturing line producing a bonded wool fibergla ss building insulation product; and (3) Each new and existing flame attenuation wool fi berglass manufacturing line producing a bonded pipe product and each new flame attenuation wool fiberglass manufacturing lin e producing a bonded heavy-density product
. (c) The requirements of this subpart do not apply t o a wool fiberglass manufacturing facility that the owner or operator demonstrates to the Administrator is not a major so urce as defined in § 63.2. (d) The provisions of this part 63, subpart A that apply and those that do not apply to this subpart are spe cified in Table 1 of this subpart. § 63.1381 Definitions. Terms used in this subpart are defined in the Clean Air Act, in § 63.2, or in this section as follows: Bag leak detection system means systems that includ e, but are not limited to, devices using triboelectric, li ghtPage 3 of 65

scattering, and other effects to monitor relative o r absolute particulate matter (PM) emissions. Bonded means wool fiberglass to which a phenol-form aldehyde binder has been applied. Building insulation means bonded wool fiberglass insulation, having a loss on ignition of less than 8 percent and a density of less than 32 kilograms per cubic meter (kg/m 3 ) (2 pounds per cubic foot [lb/ft 3 ]). Cold top electric furnace means an all-electric gla ssmelting furnace that operates with a temperature of 120 °C (250 °F) or less as measured at a location 46 to 61 cent imeters (18 to 24 inches) above the molten glass surface. Flame attenuation means a process used to produce w ool fiberglass where molten glass flows by gravity from melting furnaces, or pots, to form filaments that are drawn down and attenuated by passing in front of a high-velocity g as burner flame. Gas-fired glass-melting furnace means a unit compri sing a refractory vessel in which raw materials are charge d, melted at high temperature using natural gas and other fuels, refined, and conditioned to produce molten glass. The unit inclu des foundations, superstructure and retaining walls, ra w material charger systems, heat exchangers, exhaust system, r efractory brick work, fuel supply and electrical boosting equ ipment,Page 4 of 65

integral control systems and instrumentation, and a ppendages for conditioning and distributing molten glass to formi ng processes. The forming apparatus, including flow channels, is not considered part of the gas-fired glass-melting furn ace. Cold-top electric glass-melting furnaces as defined in this subpart are not gas-fired glass-melting furnaces. Glass-melting furnace means a unit comprising a ref ractory vessel in which raw materials are charged, melted a t high temperature, refined, and conditioned to produce mo lten glass. The unit includes foundations, superstructure and r etaining walls, raw material charger systems, heat exchanger s, melter cooling system, exhaust system, refractory brick wo rk, fuel supply and electrical boosting equipment, integral control systems and instrumentation, and appendages for con ditioning and distributing molten glass to forming processes. The forming apparatus, including flow channels, is not consider ed part of the glass-melting furnace. Glass pull rate means the mass of molten glass that is produced by a single glass-melting furnace or that is used in the manufacture of wool fiberglass at a single manu facturing line in a specified time period. Hazardous Air Pollutant (HAP) means any air polluta nt listed in or pursuant to section 112(b) of the Clea n Air Act. Commented [JF1]: You have a definition for Cold-top electric furnace, not Cold-top electric glass-melti ng furnace.Page 5 of 65

Heavy-density product means bonded wool fiberglass insulation manufactured on a flame attenuation manu facturing line and having a loss on ignition of 11 to 25 perc ent and a density of 8 to 48 kg/m 3 (0.5 to 3 lb/ft 3 ). Incinerator means an enclosed air pollution control device that uses controlled flame combustion to convert co mbustible materials to noncombustible gases. For the purposes of this subpart, the term “incinerator” means “regenerative thermal oxidizer” (RTO). Loss on ignition (LOI) means the percent decrease i n weight of wool fiberglass after it has been ignited. The L OI is used to monitor the weight percent of binder in wool fiberg lass. Manufacturing line means the manufacturing equipmen t for the production of wool fiberglass that consists of a forming section where molten glass is fiberized and a fiber glass mat is formed and which may include a curing section where binder resin in the mat is thermally set and a cooling section w here the mat is cooled. New source means any affected source the constructi on or reconstruction of which is commenced after November 25, 2011March 31, 1997
. Pipe product means bonded wool fiberglass insulatio n manufactured on a flame attenuation manufacturing l ine and Commented [JF2]: RTO does not appear elsewhere in the rule text.Page 6 of 65

having a loss on ignition of 8 to 14 percent and a density of 48 to 96 kg/m 3 (3 to 6 lb/ft 3 ). Rotary spin means a process used to produce wool fi berglass building insulation by forcing molten glass through numerous small orifices in the side wall of a spinner to for m continuous glass fibers that are then broken into discrete len gths by highvelocity air flow. Any process used to produce bond ed wool fiberglass building insulation by a process other t han flame attenuation is considered rotary spin. Wool fiberglass means insulation materials composed of glass fibers made from glass produced or melted at the same facility where the manufacturing line is located. Wool fiberglass manufacturing facility means any fa cility manufacturing wool fiberglass on a rotary spin manu facturing line or on a flame attenuation manufacturing line. § 63.1382 Emission standards. (a) Emission limits (1) Glass-melting furnaces. On and after the date t he initial performance test is completed or required t o be completed under § 63.7, whichever date is earlier: (i) For each existing, new, or reconstructed glass- melting furnace you must not discharge or cause to be disch arged into the atmosphere in excess of 0.33 pound (lb) of part iculate matter (PM) per ton glass pulled;Page 7 of 65

(ii) For each existing, new, or reconstructed gas-f ired glass-melting furnace, you must not discharge or ca use to be discharged into the atmosphere in excess of 0.00025 lb of chromium (Cr) compounds per ton glass pulled (0.25 lb per thousand tons glass pulled). (iii) For each existing, new, or reconstructed gas- fired glass-melting furnace you must either: (A) Require cullet providers to provide records of their inspections showing that no glass from industrial ( also known as continuous strand, or textile) fiberglass, cathode ray tubes (CRT), computer monitors that include CRT, and glas s from microwave ovens, televisions or other electronics i s included in the cullet; or (B) Sample your raw materials and maintain records of your sampling showing that the cullet is free of glass f rom industrial fiberglass, cathode ray tubes, computer monitors that include cathode ray tubes, and glass from microwave ovens, televisions or other electronics. (1) Glass-melting furnaces. On and after the date t he initial performance test is completed or required t o be completed under § 63.7 of this part, whichever date is earlier, the owner or operator shall not discharge or cause to be discharged into the atmosphere in excess of 0.25 ki logram (kg) of particulate matter (PM) per megagram (Mg) (0.5 p ound [lb] ofPage 8 of 65

PM per ton) of glass pulled for each new or existin g glassmelting furnace. (2) Rotary spin manufacturing lines. On and after t he date the initial performance test is completed or requir ed to be completed under § 63.7 of this part, whichever date is earlier, the owner or operator shall not discharge or cause to be discharged into the atmosphere in excess of: (i) 0.6 kg of formaldehyde per megagram (1.2 lb of formaldehyde per ton) of glass pulled for each exis ting rotary spin manufacturing line; and (ii) 0.4 kg of formaldehyde per megagram (0.8 lb of formaldehyde per ton) of glass pulled for each new rotary spin manufacturing line. (3) Flame attenuation manufacturing lines. On and a fter the date the initial performance test is completed or r equired to be completed under § 63.7, whichever date is earlier, the owner or operator shall not discharge or cause to be dischar ged into the atmosphere in excess of: (i) For each existing flame attenuation (FA) manufa cturing line, you must not discharge or cause to be dischar ged into the atmosphere in excess of: (A) 5.6 lb of formaldehyde per ton glass pulled; (B) 1.4 lb of phenol per ton glass pulled; and (C) 0.50 lb of methanol per ton glass pulled.Page 9 of 65

(ii) For each new or reconstructed FA manufacturing line you must not discharge or cause to be discharged in to the atmosphere in excess of: (A) 2.6 lb of formaldehyde per ton glass pulled; (B) 0.44 lb of phenol per ton glass pulled; and (C) 0.35 lb of methanol per ton glass pulled. (3) Flame attenuation manufacturing lines. On and after the date the initial performance test is completed or required to be completed under § 63.7 of this part, whicheve r date is earlier, the owner or operator shall not discharge or cause to be discharged into the atmosphere in excess of: (i) 3.9 kg of formaldehyde per megagram (7.8 lb of formaldehyde per ton) of glass pulled for each new flame attenuation manufacturing line that produces heavy- density wool fiberglass; and (ii) 3.4 kg of formaldehyde per megagram (6.8 lb of formaldehyde per ton) of glass pulled from each exi sting or new flame attenuation manufacturing line that produces pipe product wool fiberglass. (b) Operating limits. On and after the date on whic h the performance test required to be conducted by §§ 63. 7 and 63.1384 is completed, the owner or operator must operate al l affected control equipment and processes according to the fo llowing requirements.Page 10 of 65

(1)(i) The owner or operator must initiate correcti ve action within 1 hour of an alarm from a bag leak de tection system and complete corrective actions in a timely manner according to the procedures in the operations, main tenance, and monitoring plan. (ii) The owner or operator must implement a Quality Improvement Plan (QIP) consistent with the complian ce assurance monitoring provisions of 40 CFR part 64, subpart D when the bag leak detection system alarm is sounded for more tha n 5 percent of the total operating time in a 6-month block repo rting period. (2)(i) The owner or operator must initiate correcti ve action within 1 hour when any 3-hour block average of the monitored electrostatic precipitator (ESP) paramete r is outside the limit(s) established during the performance tes t as specified in § 63.1384 and complete corrective acti ons in a timely manner according to the procedures in the op erations, maintenance, and monitoring plan. (ii) The owner or operator must implement a QIP con sistent with the compliance assurance monitoring provisions of 40 CFR part 64 subpart D when the monitored ESP parameter is outside the limit(s) established during the performance tes t as specified in § 63.1384 for more than 5 percent of t he total operating time in a 6-month block reporting period.Page 11 of 65

(iii) The owner or operator must operate the ESP su ch that the monitored ESP parameter is not outside the limi t(s) established during the performance test as specifie d in § 63.1384 for more than 10 percent of the total opera ting time in a 6-month block reporting period. (3)(i) The owner or operator must initiate correcti ve action within 1 hour when any 3-hour block average temperature of a cold top electric furnace as measured at a loc ation 46 to 61 centimeters (18 to 24 inches) above the molten g lass surface, exceeds 120 °C (250 °F) and complete corrective act ions in a timely manner according to the procedures in the op erations, maintenance, and monitoring plan. (ii) The owner or operator of a cold top electric f urnace must implement a QIP consistent with the compliance assurance monitoring provisions of 40 CFR part 64, subpart D when the temperature, as measured at a location 46 to 61 cen timeters (18 to 24 inches) above the molten glass surface, excee ds 120 °C (250 °F) for more than 5 percent of the total opera ting time in a 6-month block reporting period. (iii) The owner or operator must operate the cold t op electric furnace such that the temperature does not exceed 120 °C (250 °F) as measured at a location 46 to 61 cent imeters (18 to 24 inches) above the molten glass surface, for m ore than 10Page 12 of 65

percent of the total operating time in a 6-month re porting period. (4)(i) The owner or operator must initiate correcti ve action within 1 hour when any 3-hour block average value for the monitored parameter(s) for a glass-melting furnace, which uses no add-on controls and which is not a cold top elec tric furnace, is outside the limit(s) established during the perf ormance test as specified in § 63.1384 and complete corrective a ctions in a timely manner according to the procedures in the op erations, maintenance, and monitoring plan. (ii) The owner or operator must implement a QIP con sistent with the compliance assurance monitoring provisions of 40 CFR part 64 subpart D when the monitored parameter(s) i s outside the limit(s) established during the performance test as specified in § 63.1384 for more than 5 percent of the total oper ating time in a 6-month block reporting period. (iii) The owner or operator must operate a glass-me lting furnace, which uses no add-on controls and which is not a cold top electric furnace, such that the monitored param eter(s) is not outside the limit(s) established during the per formance test as specified in § 63.1384 for more than 10 percent of the total operating time in a 6-month block reporting period. (5)(i) The owner or operator must initiate correcti ve action within 1 hour when the average glass pull ra te of any 4-Page 13 of 65

hour block period for glass melting furnaces equipp ed with continuous glass pull rate monitors, or daily glass pull rate for glass melting furnaces not so equipped, exceeds the average glass pull rate established during the performance test as specified in § 63.1384, by greater than 20 percent and complete corrective actions in a timely manner according to the procedures in the operations, maintenance, and moni toring plan. (ii) The owner or operator must implement a QIP con sistent with the compliance assurance monitoring provisions of 40 CFR part 64, subpart D when the glass pull rate exceeds , by more than 20 percent, the average glass pull rate establ ished during the performance test as specified in § 63.1384 for more than 5 percent of the total operating time in a 6-month bl ock reporting period. (iii) The owner or operator must operate each glass -melting furnace such that the glass pull rate does not exce ed, by more than 20 percent, the average glass pull rate establ ished during the performance test as specified in § 63.1384 for more than 10 percent of the total operating time in a 6-month bl ock reporting period. (6) The owner or operator must operate each inciner ator used to control formaldehyde emissions from forming or curing such that any 3-hour block average temperature in t he fireboxPage 14 of 65

does not fall below the average established during the performance test as specified in § 63.1384. (7)(i) The owner or operator must initiate correcti ve action within 1 hour when the average pressure drop , liquid flow rate, or chemical feed rate for any 3-hour block pe riod is outside the limits established during the performan ce tests as specified in § 63.1384 for each wet scrubbing contr ol device and complete corrective actions in a timely manner acco rding to the procedures in the operations, maintenance, and moni toring plan. (ii) The owner or operator must implement a QIP con sistent with the compliance assurance monitoring provisions of 40 CFR part 64, subpart D when any scrubber parameter is o utside the limit(s) established during the performance test as specified in § 63.1384 for more than 5 percent of the total oper ating time in a 6-month block reporting period. (iii) The owner or operator must operate each scrub ber such that each monitored parameter is not outside the li mit(s) established during the performance test as specifie d in § 63.1384 for more than 10 percent of the total opera ting time in a 6-month block reporting period. (8)(i) The owner or operator must initiate correcti ve action within 1 hour when the monitored process par ameter level(s) is outside the limit(s) established during the performance test as specified in § 63.1384 for the processPage 15 of 65

modification(s) used to control formaldehyde emissi ons and complete corrective actions in a timely manner acco rding to the procedures in the operations, maintenance, and moni toring plan. (ii) The owner or operator must implement a QIP con sistent with the compliance assurance monitoring provisions of 40 CFR part 64, subpart D when the process parameter(s) is outside the limit(s) established during the performance test as specified in § 63.1384 for more than 5 percent of the total oper ating time in a 6-month block reporting period. (iii) The owner or operator must operate the proces s modifications such that the monitored process param eter(s) is not outside the limit(s) established during the per formance test as specified in § 63.1384 for more than 10 percent of the total operating time in a 6-month block reporting period. (9) The owner or operator must use a resin in the formulation of binder such that the free-formaldehy de content of the resin used does not exceed the free-formaldehyd e range contained in the specification for the resin used d uring the performance test as specified in § 63.1384. (10) The owner or operator must use a binder formul ation that does not vary from the specification and opera ting range established and used during the performance test as specified in § 63.1384. For the purposes of this standard, addin g or increasing the quantity of urea and/or lignin in th e binderPage 16 of 65

formulation does not constitute a change in the bin der formulation. (11) The owner or operator must maintain the percen tage of cullet in the materials mix for each gas-fired glas s-melting furnace at or below the level established during th e performance test as specified in § 63.1384(a)(4). § 63.1383 Monitoring requirements. On and after the date on which the performance test required to be conducted by §§ 63.7 and 63.1384 is completed, the owner or operator must monitor all affected con trol equipment and processes according to the following requirements. (a) The owner or operator of each wool fiberglass manufacturing facility must prepare for each glass- melting furnace, rotary spin manufacturing line, and flame attenuation manufacturing line subject to the provisions of thi s subpart, a written operations, maintenance, and monitoring pla n. The plan must be submitted to the Administrator for review a nd approval as part of the application for a part 70 permit. Th e plan must include the following information: (1) Procedures for the proper operation and mainten ance of process modifications and add-on control devices us ed to meet the emission limits in § 63.1382; (2) Procedures for the proper operation and mainten ance of monitoring devices used to determine compliance, in cludingPage 17 of 65

quarterly calibration and certification of accuracy of each monitoring device according to the manufacturers's instructions;
and (3) Corrective actions to be taken when process par ameters or add-on control device parameters deviate from th e limit(s) established during initial performance tests. (b)(1) Where a baghouse is used to control PM emiss ions from a glass-melting furnace, the owner or operator shall install, calibrate, maintain, and continuously oper ate a bag leak detection system. (i) The bag leak detection system must be certified by the manufacturer to be capable of detecting PM emission s at concentrations of 10 milligrams per actual cubic me ter (0.0044 grains per actual cubic foot) or less. (ii) The bag leak detection system sensor must prod uce output of relative PM emissions. (iii) The bag leak detection system must be equippe d with an alarm system that will sound automatically when an increase in relative PM emissions over a preset level is det ected and the alarm must be located such that it can be heard by the appropriate plant personnel. (iv) For positive pressure fabric filter systems, a bag leak detection system must be installed in each bag house compartment or cell. If a negative pressure or indu ced airPage 18 of 65

baghouse is used, the bag leak detection system mus t be installed downstream of the baghouse. Where multipl e bag leak detection systems are required (for either type of baghouse), the system instrumentation and alarm may be shared among the monitors. (v) A triboelectric bag leak detection system shall be installed, operated, adjusted, and maintained in a manner consistent with the U.S. Environmental Protection A gency guidance, “Fabric Filter Bag Leak Detection Guidanc e” (EPA454/R-98-015, September 1997). Other bag leak detec tion systems shall be installed, operated, adjusted, and maintai ned in a manner consistent with the manufacturer's written s pecifications and recommendations. (vi) Initial adjustment of the system shall, at a m inimum, consist of establishing the baseline output by adju sting the range and the averaging period of the device and es tablishing the alarm set points and the alarm delay time. (vii) Following the initial adjustment, the owner o r operator shall not adjust the range, averaging peri od, alarm setpoints, or alarm delay time except as detailed i n the approved operations, maintenance, and monitoring pl an required under paragraph (a) of this section. In no event sh all the range be increased by more than 100 percent or decreased more than 50 percent over a 365-day period unless a responsible official asPage 19 of 65

defined in § 63.2 of the general provisions in subp art A of this part certifies that the baghouse has been inspected and found to be in good operating condition. (2) The operations, maintenance, and monitoring pla n required by paragraph (a) of this section must spec ify corrective actions to be followed in the event of a bag leak detection system alarm. Example corrective actions that may be included in the plan include the following: (i) Inspecting the baghouse for air leaks, torn or broken bags or filter media, or any other conditions that may cause an increase in emissions. (ii) Sealing off defective bags or filter media. (iii) Replacing defective bags or filter media, or otherwise repairing the control device. (iv) Sealing off a defective baghouse compartment. (v) Cleaning the bag leak detection system probe, o r otherwise repairing the bag leak detection system. (vi) Shutting down the process producing the partic ulate emissions. (c)(1) Where an ESP is used to control PM emissions from a glass-melting furnace, the owner or operator must m onitor the ESP according to the procedures in the operations, maintenance, and monitoring plan. (2)The operations, maintenance , andPage 20 of 65

monitoring plan for the ESP must contain the follow ing information: (i) The ESP operating parameter(s), such as seconda ry voltage of each electrical field, to be monitored a nd the minimum and/or maximum value(s) that will be used t o identify any operational problems; (ii) A schedule for monitoring the ESP operating parameter(s); (iii) Recordkeeping procedures, consistent with the recordkeeping requirements of § 63.1386, to show th at the ESP operating parameter(s) is within the limit(s) estab lished during the performance test; and (iv) Procedures for the proper operation and mainte nance of the ESP. (d) The owner or operator must measure and record a t least once per shift the temperature 46 to 61 centimeters (18 to 24 inches) above the surface of the molten glass in a cold top electric furnace that does not use any add-on contr ols to control PM emissions. (e)(1) Where a glass-melting furnace is operated wi thout an add-on control device to control PM emissions, the owner or operator must monitor the glass-melting furnace acc ording to the procedures in the operations, maintenance, and moni toring plan.Page 21 of 65

(2) The operations, maintenance, and monitoring pla n for the glass-melting furnace must contain the followin g information: (i) The operating parameter(s) to be monitored and the minimum and/or maximum value(s) that will be used t o identify any operational problems; (ii) A schedule for monitoring the operating parame ter(s) of the glass-melting furnace; (iii) Recordkeeping procedures, consistent with the recordkeeping requirements of § 63.1386, to show th at the glassmelting furnace parameter(s) is within the limit(s) established during the performance test; and (iv) Procedures for the proper operation and mainte nance of the glass-melting furnace. (f) The owner or operator who uses a control device to control HAP emissions from a glass-melting furnace, RS manufacturing line, or FA manufacturing line must i nstall, calibrate, maintain, and operate a monitoring devic e that continuously measures an appropriate parameter that is correlated to the emission limit performance test.( f)(1) The owner or operator of an existing glass-melting furn ace equipped with continuous glass pull rate monitors must monit or and record the glass pull rate on an hourly basis. For glass-m elting furnaces that are not equipped with continuous glas s pull ratePage 22 of 65

monitors, the glass pull rate must be monitored and recorded once per day. (2) On any new glass-melting furnace, the owner or operator must install, calibrate, and maintain a continuous glass pull rate monitor that monitors and records on an hourly basis the glass pull rate. (g)(1) The owner or operator who uses an incinerato r to control formaldehyde emissions from forming or curi ng shall install, calibrate, maintain, and operate a monitor ing device that continuously measures and records the operatin g temperature in the firebox of each incinerator. (2) The owner or operator must inspect each inciner ator at least once per year according to the procedures in the operations, maintenance, and monitoring plan. At a minimum, an inspection must include the following: (i) Inspect all burners, pilot assemblies, and pilo t sensing devices for proper operation and clean pilo t sensor, as
necessary; (ii) Ensure proper adjustment of combustion air and adjust,
as necessary; (iii) Inspect, when possible, internal structures, for example, baffles, to ensure structural integrity pe r the design specifications;Page 23 of 65

(iv) Inspect dampers, fans, and blowers for proper operation; (v) Inspect for proper sealing; (vi) Inspect motors for proper operation; (vii) Inspect combustion chamber refractory lining and clean and repair/replace lining, as necessary; (viii) Inspect incinerator shell for corrosion and/ or hot spots; (ix) For the burn cycle that follows the inspection , document that the incinerator is operating properly and make any necessary adjustments; and (x) Generally observe that the equipment is maintai ned in good operating condition. (xi) Complete all necessary repairs as soon as prac ticable. (h) The owner or operator who uses a wet scrubbing control device to control formaldehyde emissions must insta ll, calibrate, maintain, and operate monitoring devices that continuously monitor and record the gas pressure dr op across each scrubber and scrubbing liquid flow rate to eac h scrubber according to the procedures in the operations, main tenance, and monitoring plan. The pressure drop monitor is to be certified by its manufacturer to be accurate within ±250 pascals (±1 inch water gauge) over its operating range, and the flow rate monitor is to be certified by its manufacturer to be accura te within ±5Page 24 of 65

percent over its operating range. The owner or oper ator must also continuously monitor and record the feed rate of any chemical(s) added to the scrubbing liquid. (i)(1) The owner or operator who uses process modif ications to control formaldehyde emissions must establish a correlation between formaldehyde emissions and a process parame ter(s) to be monitored. (2) The owner or operator must monitor the establis hed parameter(s) according to the procedures in the ope rations, maintenance, and monitoring plan. (3) The owner or operator must include as part of t heir operations, maintenance, and monitoring plan the fo llowing information: (i) Procedures for the proper operation and mainten ance of the process; (ii) Process parameter(s) to be monitored to demons trate compliance with the applicable emission limits in § 63.1382. Examples of process parameters include LOI, binder solids content, and binder application rate; (iii) Correlation(s) between process parameter(s) t o be monitored and formaldehyde emissions; (iv) A schedule for monitoring the process paramete r(s); andPage 25 of 65

(v) Recordkeeping procedures, consistent with the recordkeeping requirements of § 63.1386, to show th at the process parameter value(s) established during the p erformance test is not exceeded. (j) The owner or operator must monitor and record t he freeformaldehyde content of each resin shipment receive d and used in the formulation of binder. (k) The owner or operator must monitor and record t he formulation of each batch of binder used. (l) The owner or operator must monitor and record a t least once every 8 hours, the product LOI and product den sity of each bonded wool fiberglass product manufactured. (m) For all control device and process operating pa rameters measured during the initial performance tests, incl uding the materials mix used in the test, the owners or opera tors of glass-melting furnaces, rotary spin manufacturing l ines or flame attenuation manufacturing lines subject to this sub part may change the limits established during the initial pe rformance tests if additional performance testing is conducte d to verify that, at the new control device or process paramete r levels, they comply with the applicable emission limits in § 63.1382. The owner or operator shall conduct all additional performance tests according to the procedures in this part 63, subpart A and in § 63.1384.Page 26 of 65

(m) For all control device and process operating pa rameters measured during the initial performance tests, the owners or operators of glass-melting furnaces, rotary spin ma nufacturing lines or flame attenuation manufacturing lines subj ect to this subpart may change the limits established during th e initial performance tests if additional performance testing is conducted to verify that, at the new control device or proces s parameter levels, they comply with the applicable emission li mits in § 63.1382. The owner or operator shall conduct all ad ditional performance tests according to the procedures in th is part 63, subpart A and in § 63.1384. § 63.1384 Performance test requirements. (a) The owner or operator subject to the provisions of this subpart shall conduct a performance test to demonst rate compliance with the applicable emission limits in § 63.1382. Compliance is demonstrated when the emission rate o f the pollutant is equal to or less than each of the appl icable emission limits in § 63.1382. The owner or operator shall conduct the performance test according to the proce dures in 40 CFR part 63, subpart A and in this section. (1) All monitoring systems and equipment must be in stalled, operational, and calibrated prior to the performanc e test. (2) Unless a different frequency is specified in th is section, the owner or operator must monitor and rec ord processPage 27 of 65

and/or add-on control device parameters at least ev ery 15 minutes during the performance tests. The arithmeti c average for each parameter must be calculated using all of the recorded measurements for the parameter. (3) During each performance test, the owner or oper ator must monitor and record the glass pull rate for eac h glassmelting furnace and, if different, the glass pull r ate for each rotary spin manufacturing line and flame attenuatio n manufacturing line. Record the glass pull rate ever y 15 minutes during any performance test required by this subpar t and determine the arithmetic average of the recorded me asurements for each test run and calculate the average of the three test

runs. (4) The owner or operator shall conduct a performan ce test for each existing and new glass-melting furnace. During the performance test of each gas-fired glass-melting fu rnace, the owner or operator must measure and record the mater ials mix, including the percentages of raw materials and cull et, melted in the furnace during the performance test. (5) During the performance test, the owner or opera tor of a glass-melting furnace controlled by an ESP shall mo nitor and record the ESP parameter level(s), as specified in the operations, maintenance, and monitoring plan, and e stablish thePage 28 of 65

minimum and/or maximum value(s) that will be used t o demonstrate compliance after the initial performance test. (6) During the performance test, the owner or opera tor of a cold top electric furnace that is not equipped with an add-on control device for PM emissions control, must monit or and record the temperature 46 to 61 centimeters (18 to 24 inch es) above the molten glass surface to ensure that the maximum tem perature does not exceed 120 °C (250 °F). (7) During the performance test, the owner or opera tor of a glass melting furnace (other than a cold top electr ic furnace) that is not equipped with an add-on control device for PM emissions control, must monitor and record the furn ace parameter level, and establish the minimum and/or maximum val ue(s) that will be used to demonstrate compliance after the in itial performance test. (8) The owner or operator must conduct a performanc e test for each rotary spin manufacturing line, subject to this subpart, while producing the building insulation wi th the highest LOI expected to be produced on that line; a nd for each flame attenuation manufacturing line, subject to th is subpart, while producing the heavy-density product or pipe p roduct with the highest LOI expected to be produced on the affe cted line. (9) The owner or operator of each rotary spin manuf acturing line and flame attenuation manufacturing line regul ated by thisPage 29 of 65

subpart must conduct performance tests using the re sin with the highest free-formaldehyde content. During the perfo rmance test of each rotary spin manufacturing line and flame at tenuation manufacturing line regulated by this subpart, the o wner or operator shall monitor and record the free-formalde hyde content of the resin, the binder formulation used, and the product LOI and density. (10) During the performance test, the owner or oper ator of a rotary spin manufacturing line or flame attenuati on manufacturing line who plans to use process modific ations to comply with the emission limits in § 63.1382 must m onitor and record the process parameter level(s), as specified in the operations, maintenance, and monitoring plan, which will be used to demonstrate compliance after the initial perform ance test. (11) During the performance test, the owner or oper ator of a rotary spin manufacturing line or flame attenuati on manufacturing line who plans to use a wet scrubbing control device to comply with the emission limits in § 63.1 382 must continuously monitor and record the pressure drop a cross the scrubber, the scrubbing liquid flow rate, and addit ion of any chemical to the scrubber, including the chemical fe ed rate, and establish the minimum and/or maximum value(s) that will be used to determine compliance after the initial performan ce test.Page 30 of 65

(12) During the performance test, the owner or oper ator of a rotary spin manufacturing line or affected flame attenuation manufacturing line shall continuously record the op erating temperature of each incinerator and record the aver age during each 1-hour test; the average operating temperature of the three 1-hour tests shall be used to monitor compliance. (13) Unless disapproved by the Administrator, an ow ner or operator of a rotary spin or flame attenuation manu facturing line regulated by this subpart may conduct short-te rm experimental production runs using binder formulati ons or other process modifications where the process parameter v alues would be outside those established during performance tes ts without first conducting performance tests. Such runs must not exceed 1 week in duration unless the Administrator approves a longer period. The owner or operator must notify the Admin istrator and postmark or deliver the notification at least 15 da ys prior to commencement of the short-term experimental product ion runs. The Administrator must inform the owner or operator of a decision to disapprove or must request additional information p rior to the date of the short-term experimental production runs
. Notification of intent to perform an experimental s hort-term production run shall include the following informat ion: (i) The purpose of the experimental production run; (ii) The affected line;Page 31 of 65

(iii) How the established process parameters will d eviate from previously approved levels; (iv) The duration of the experimental production ru n; (v) The date and time of the experimental productio n run; and (vi) A description of any emission testing to be pe rformed during the experimental production run. (b) To determine compliance with the PM emission li mit for glass-melting furnaces, use the following equation:

Where: E = Emission rate of PM, kg/Mg (lb/ton) of glass

pulled; C = Concentration of PM, g/dscm (gr/dscf); Q = Volumetric flow rate of exhaust gases, dscm/h

(dscf/h); K 1 = Conversion factor, 1 kg/1,000 g (1 lb/7,000 gr);

and P = Average glass pull rate, Mg/h (tons/h). (c) To determine compliance with the emission limit for formaldehyde, phenol, or methanol for RS manufactur ing lines and FA manufacturing lines, and for chromium compounds, HF, or HCl for glass-melting furnaces, use the following equat ion:Page 32 of 65

(c) To determine compliance with the emission limit for formaldehyde for rotary spin manufacturing lines an d flame attenuation forming processes, use the following eq uation:

Where: E = Emission rate of formaldehyde, phenol, methanol ,

chromium compounds, HF, or HCl, kg/Mg (lb/ton) of g lass pulled; C = Measured volume fraction of formaldehyde, pheno l,

methanol, chromium compounds, HF, or HCl, ppm; MW = Molecular weight of formaldehyde, 30.03 g/g-mo l;

molecular weight of phenol, 94.11 g/g-mol; molecula r weight of methanol, 32.04 g/g-mol; molecular weight of chromium compounds tested in g/g-mol; molecular wei ght of HF, 20.0064 g/g-mol; molecular weight of HCl, 36 .4611 g/gmol. E = Emission rate of formaldehyde, kg/Mg (lb/ton) o f

glass pulled; C = Measured volume fraction of formaldehyde, ppm; MW = Molecular weight of formaldehyde, 30.03 g/g-mo l; Q = Volumetric flow rate of exhaust gases, dscm/h

(dscf/h); K 1 = Conversion factor, 1 kg/1,000 g (1 lb/453.6 g); K 2 = Conversion factor, 1,000 L/m 3 (28.3 L/ft 3 ); K 3 = Conversion factor, 24.45 L/g-mol; and P = Average glass pull rate, Mg/h (tons/h). (d) Following the initial performance or compliance test conducted to demonstrate compliance with the chromi um compounds emissions limit specified in § 63.1382(a)(i), you m ust conduct an annual performance test for chromium compounds e missions fromPage 33 of 65

each glass-melting furnace (no later than 12 calend ar months following the previous compliance test). (e) Following the initial performance or compliance test to demonstrate compliance with the PM, formaldehyde, p henol, and methanol emissions limits specified in § 63.1382, y ou must conduct a performance test to demonstrate complianc e with each of the applicable PM, formaldehyde, phenol, and met hanol emissions limits in § 63.1382 at least once every f ive years. § 63.1385 Test methods and procedures. (a) The owner or operator shall use the following m ethods to determine compliance with the applicable emissio n limits: (1) Method 1 (40 CFR part 60, appendix A) for the s election of the sampling port location and number of samplin g ports; (2) Method 2 (40 CFR part 60, appendix A) for volum etric flow rate; (3) Method 3 or 3A (40 CFR part 60, appendix A) for O 2 and
CO 2 for diluent measurements needed to correct the con centration measurements to a standard basis; (4) Method 4 (40 CFR part 60, appendix A) for moist ure content of the stack gas; (5) Method 5 or Method 29 (40 CFR part 60, appendix A–3) for the concentration of total PM. When using Metho d 5, each run must consist of a minimum sample volume of 2 dry st andard cubic meters (dscm). When using Method 29, each run must consist of aPage 34 of 65

minimum sample volume of 3 dscm. When measuring PM concentration using either Method 5 or 29, the probe and filter h older heating system must be set to provide a gas temperature no greater than 120±14°C (248±25°F); (5) Method 5 (40 CFR part 60, appendix A) for the concentration of PM. Each run shall consist of a mi nimum run time of 2 hours and a minimum sample volume of 60 d ry standard cubic feet (dscf). The probe and filter holder heat ing system may be set to provide a gas temperature no greater than 177 ±14 °C (350 ±25 °F); (6) For measuring the concentration of formaldehyde , use one of the following test methods: (i) Method 318 (appendix A of this part). Each test run must consist of a minimum of 10 spectra. (ii) Method 316 (appendix A of this part). Each tes t run must consist of a minimum of 2 dry standard cubic m eters (dscm) of sample volume. (6) Method 316 or Method 318 (appendix A of this pa rt) for the concentration of formaldehyde. Each run shall c onsist of a minimum run time of 1 hour; (7) Method contained in appendix A of this subpart for the determination of product LOI; (8) Method contained in appendix B of this subpart for the determination of the free-formaldehyde content of r esin;Page 35 of 65

(9) Method contained in appendix C of this subpart for the determination of product density; (10) For measuring the concentration of phenol, use Method 318 (appendix A of this part). Each test run must c onsist of a minimum of 10 spectra. (11) For measuring the concentration of methanol, u se one of the following test methods: (i) Method 318 (appendix A of this part). Each test run must consist of a minimum of 10 spectra. (ii) Method 308 (appendix A of this part). Each tes t run must consist of a minimum of 2 hours. (12) Method 29 (40 CFR part 60, appendix A–8) for t he concentration of chromium compounds. Each test run must consist of a minimum sample volume of 3 dscm. ( 1013 ) An alternative method, subject to approval by the Administrator. (b) Each performance test shall consist of 3 runs. The owner or operator shall use the average of the thre e runs in the applicable equation for determining compliance. § 63.1386 Notification, recordkeeping, and reportin g requirements. (a) Notifications. As required by § 63.9(b) through (h) of this part, the owner or operator shall submit the f ollowing written initial notifications to the Administrator:Page 36 of 65

(1) Notification for an area source that subsequent ly increases its emissions such that the source is a m ajor source subject to the standard; (2) Notification that a source is subject to the st andard, where the initial startup is before November 25, 2011June 14, 2002
. (3) Notification that a source is subject to the st andard, where the source is new or has been reconstructed, the initial startup is after November 25, 2011June 14, 2002 , and for which an application for approval of construction or reco nstruction is not required; (4) Notification of intention to construct a new af fected source or reconstruct an affected source; of the da te construction or reconstruction commenced; of the an ticipated date of startup; of the actual date of startup, whe re the initial startup of a new or reconstructed source oc curs after November 25, 2011, and for which an application for approval or construction or reconstruction is required (See § 6 3.9(b)(4) and (5) of this part); (4) Notification of intention to construct a new m ajor source or reconstruct a major source; of the date c onstruction or reconstruction commenced; of the anticipated dat e of startup; of the actual date of startup, where the initial st artup of a new or reconstructed source occurs after June 14, 2 002, and forPage 37 of 65

which an application for approval or construction o r reconstruction is required (See § 63.9(b)(4) and (5 ) of this part); (5) Notification of special compliance obligations; (6) Notification of performance test; and (7) Notif ication of compliance status. (b) Performance test report. As required by § 63.10(d)( 2) of the general provisions, the owner or operator sh all report the results of the initial performance test as part of the notification of compliance status required in parag raph (a)(7) of this section.Reserved. (c) Records and reports for a failure to meet a sta ndard. (c) Startup, shutdown, and malfunction plan and rep orts. (1) In the event that an affected unit fails to mee t a standard, record the number of failures since the p rior notification of compliance status. For each failure , record the date, time, and duration of each failure. (1) The owner or operator shall develop a written p lan as described in § 63.6(e)(3) that contains specific pr ocedures to be followed for operating the source and maintainin g the source during periods of startup, shutdown, and malfunctio n and a program of corrective action for malfunctioning pro cess modifications and control systems used to comply wi th thePage 38 of 65

standards. In addition to the information required in § 63.6(e)(3), the plan shall include: (i) Procedures to determine and record the cause of the malfunction and the time the malfunction began and ended; (ii) Corrective actions to be taken in the event of a malfunction of a control device or process modifica tion, including procedures for recording the actions take n to correct the malfunction or minimize emissions; and (iii) A maintenance schedule for each control devic e and process modification that is consistent with the ma nufacturer's instructions and recommendations for routine and lo ng-term maintenance. (2) For each failure to meet a standard, record and retain a list of the affected source or equipment, an esti mate of the volume of each regulated pollutant emitted over the standard for which the source failed to meet the standard, and a description of the method used to estimate the emissions. (2) The owner or operator shall also keep records of each event as required by § 63.10(b) of this part and re cord and report if an action taken during a startup, shutdow n, or malfunction is not consistent with the procedures i n the plan as described in § 63.10(e)(3)(iv) of this part. (3) Record actions taken to minimize emissions in accordance with § 63.1382, including corrective act ions toPage 39 of 65

restore process and air pollution control and monit oring equipment to its normal or usual manner of operatio n. (4) If an affected unit fails to meet a standard, r eport such events in the notification of compliance statu s required by § 63.1386(a)(7). Report the number of failures to m eet a standard since the prior notification. For each ins tance, report the date, time, and duration of each failure. For e ach failure the report must include a list of the affected unit s or equipment, an estimate of the volume of each regula ted pollutant emitted over the standard, and a description of the method used to estimate the emissions. (d) Recordkeeping. (1) As required by § 63.10(b) of this part, the owner or operator shall maintain files of all information (including all reports and notification s) required by the general provisions and this subpart: (i) The owner or operator must retain each record f or at least 5 years following the date of each occurrence , measurement, maintenance, corrective action, report , or record. The most recent 2 years of records must be retained at the facility. The remaining 3 years of records may be r etained off site; (ii) The owner or operator may retain records on mi crofilm, on a computer, on computer disks, on magnetic tape, or on microfiche; andPage 40 of 65

(iii) The owner or operator may report required inf ormation on paper or on a labeled computer disk using common ly available and EPA-compatible computer software. (2) In addition to the general records required by § 63.10(b)(2) of this part, the owner or operator sha ll maintain records of the following information: (i) Any bag leak detection system alarms, including the date and time of the alarm, when corrective actions were initiated, the cause of the alarm, an explanation o f the corrective actions taken, and when the cause of the alarm was corrected; (ii) ESP parameter value(s) used to monitor ESP performance, including any period when the value(s) deviated from the established limit(s), the date and time of the deviation, when corrective actions were initiated, the cause of the deviation, an explanation of the corrective act ions taken, and when the cause of the deviation was corrected; (iii) Air temperature above the molten glass in an uncontrolled cold top electric furnace, including a ny period when the temperature exceeded 120 °C (250 °F) at a location 46 to 61 centimeters (18 to 24 inches) above the molte n glass surface, the date and time of the exceedance, when corrective actions were initiated, the cause of the exceedance , anPage 41 of 65

explanation of the corrective actions taken, and wh en the cause of the exceedance was corrected; (iv) Uncontrolled glass-melting furnace (that is no t a cold top electric furnace) parameter value(s) used to mo nitor furnace performance, including any period when the value(s) exceeded the established limit(s), the date and time of the exce edance, when corrective actions were initiated, the cause of the exceedance, an explanation of the corrective actions taken, and when the cause of the exceedance was corrected; (v) The formulation of each binder batch and the LO I and density for each product manufactured on a rotary s pin manufacturing line or flame attenuation manufacturi ng line subject to the provisions of this subpart, and the free formaldehyde content of each resin shipment receive d and used in the binder formulation; (vi) Process parameter level(s) for RS and FA manuf acturing lines that use process modifications to comply with the emission limits, including any period when the parameter lev el(s) deviated from the established limit(s), the date an d time of the deviation, when corrective actions were initiated, the cause of the deviation, an explanation of the corrective act ions taken, and when the cause of the deviation was corrected; (vii) Scrubber pressure drop, scrubbing liquid flow rate, and any chemical additive (including chemical feed rate to thePage 42 of 65

scrubber), including any period when a parameter le vel(s) deviated from the established limit(s), the date an d time of the deviation, when corrective actions were initiated, the cause of the deviation, an explanation of the corrective act ions taken, and when the cause of the deviation was corrected; (viii) Incinerator operating temperature and result s of periodic inspection of incinerator components, incl uding any period when the temperature fell below the establis hed average or the inspection identified problems with the inci nerator, the date and time of the problem, when corrective actio ns were initiated, the cause of the problem, an explanation of the corrective actions taken, and when the cause of the problem was corrected; (ix) Glass pull rate, including any period when the pull rate exceeded the average pull rate established dur ing the performance test by more than 20 percent, the date and time of the exceedance, when corrective actions were initia ted, the cause of the exceedance, an explanation of the corr ective actions taken, and when the cause of the exceedance was corrected. (x) Records of your cullet sampling or records of inspections from cullet providers.Page 43 of 65

(xi) For each gas-fired glass-melting furnace that uses cullet, records of the daily average cullet percent age in the materials mix charged to the furnace. (e) Excess emissions report. As required by § 63.10(e)(3)(v) of this part, the owner or operator shall report semiannually if measured emissions are in excess of the applicable standard or a monitored parameter deviat es from the levels established during the performance test. The report shall contain the information specified in § 63.10(c) of this part as well as the additional records required by the reco rdkeeping requirements of paragraph (d) of this section. When no deviations have occurred, the owner or operator sha ll submit a report stating that no excess emissions occurred du ring the reporting period. (f) Within 60 days after the date of completing eac h performance test (as defined in § 63.2) required in this subpart, you must submit the results of the perform ance tests, including any associated fuel analyses, following t he procedure specified in either paragraph (f)(1) or (2) of this section. (1) For data collected using test methods supported by the EPA’s Electronic Reporting Tool (ERT) as listed on the EPA’s ERT website (http://www.epa.gov/ttn/chief/ert/index.htm l), you must submit the results of the performance test to the E PA via the Compliance and Emissions Data Reporting Interface ( CEDRI). CEDRIPage 44 of 65

can be accessed through the EPA’s Central Data Exch ange (CDX) (http://cdx.epa.gov/epa_home.asp). Performance test data must be submitted in a file format generated through the us e of the EPA’s ERT. Alternatively, you may submit performanc e test data in an electronic file format consistent with the ex tensible markup language (XML) schema listed on the EPA’s ER T website, once the XML schema is available. If you claim that some of the performance test information being submitted is con fidential business information (CBI), you must submit a compl ete file generated through the use of the EPA’s ERT or an al ternate electronic file consistent with the XML schema list ed on the EPA’s ERT website, including information claimed to be CBI, on a compact disc, flash drive or other commonly used el ectronic storage media to the EPA. The electronic media must be clearly marked as CBI and mailed to U.S. EPA/OAPQS/CORE CBI Office, Attention: Group Leader, Measurement Policy Group, C404-02, 4930 Old Page Rd., Durham, NC 27703. The same ERT or alt ernate file with the CBI omitted must be submitted to the EPA v ia the EPA’s CDX as described earlier in this paragraph. (2) For data collected using test methods that are not supported by the EPA’s ERT as listed on the EPA’s E RT website, you must submit the results of the performance test to the Administrator at the appropriate address listed in § 63.13.Page 45 of 65

(g) All reports required by this subpart not subjec t to the requirements in paragraph (f) of this section must be sent to the Administrator at the appropriate address listed in § 63.13. If acceptable to both the Administrator and the own er or operator of a source, these reports may be submitte d on electronic media. The Administrator retains the rig ht to require submittal of reports subject to paragraph (f) of th is section in paper format. § 63.1387 Compliance dates. (a) Compliance dates. The owner or operator subject to the provisions of this subpart shall demonstrate compli ance with the requirements of this subpart by no later than: (1) For existing sources: (i) [ insert date 2 years after publication in the Federal Register ] for flame attenuation manufacturing lines; and (ii) [ insert date 2 years after publication in the Federa l Register ] for gas-fired glass-melting furnaces. (1) June 14 , 2002, for an existing glass-melting furnace, rotary spin manufacturing line, or flame attenuation manufactur ing line; or (2) Upon startup for a new glass-melting furnace, r otary spin manufacturing line, or flame attenuation manuf acturing line. (b) Compliance extension. The owner or operator of an existing source subject to this subpart may request from thePage 46 of 65

Administrator an extension of the compliance date f or the emission standards for one additional year if such additional period is necessary for the installation of control s. The owner or operator shall submit a request for an extension according to the procedures in § 63.6(i)(3) of this part. § 63.1388 Startups and shutdowns. (a) The provisions set forth in this subpart apply at all times. (b) You must not shut down items of equipment that are required or utilized for compliance with the provis ions of this subpart during times when emissions are being, or a re otherwise required to be, routed to such items of equipment. (c) Startup begins when the wool fiberglass glass-m elting furnace has any raw materials added and reaches 50 percent of its typical operating temperature. Startup ends whe n molten glass begins to flow from the wool fiberglass glass -melting furnace. For cold-top electric furnaces, startup en ds when the batch cover is established and the temperature of t he glass batch-cover surface is below 300°F. (d) Shutdown begins when the heat sources to the gl assmelting furnace are reduced to begin the glass-melt ing furnace shut down process. Shutdown ends when the glass-mel ting furnace is empty or the contents are sufficiently viscous t o preclude glass flow from the glass-melting furnace.Page 47 of 65

(e) During periods of startup and shutdown in a col d-top furnace that is routed to a baghouse during normal operation, you must establish the batch cover and operate your furnace according to the following requirements during star tup and shutdown: (1) You must keep records showing that you used onl y natural gas or other clean fuels to heat each furna ce; and (2) Except during the period of establishing batch cover, you must keep records showing that you used only cu llet as a raw material during the startup of each cold-top furnac e; And (3) Once a batch cover is established so that a con trol device can be safely operated, you must keep record s showing that furnace emissions were controlled using air po llution control devices operated at the parameters establis hed by the most recent performance test that showed compliance with the
standard. (4) During periods of shutdown in a cold-top furnac e, until the conditions above the glass reaches a point at w hich the control device may be damaged if it continues to op erate, you must keep records showing furnace emissions were co ntrolled using air pollution control devices operated at the parameters established by the most recent performance test tha t showed compliance with the standard.Page 48 of 65

(f) During both periods of startups and shutdowns f or all furnace types other than cold-top furnaces, you mus t operate each furnace according to the following requirement s: (1) You must record the type of fuel used to heat t he furnace during startup and shutdown to demonstrate that you used only natural gas or other clean fuels; and (2) You must keep records showing that furnace emis sions were controlled using air pollution control devices operated at the parameters established by the most recent perfo rmance test that showed compliance with the standard. § 63.1388 Implementation and enforcement. (a) This subpart can be implemented and enforced by the U.S. EPA, or a delegated authority such as the appl icable State, local, or Tribal agency. If the U.S. EPA Administra tor has delegated authority to a State, local, or Tribal ag ency, then that agency, in addition to the U.S. EPA, has the a uthority to implement and enforce this subpart. Contact the app licable U.S. EPA Regional Office to find out if implementation a nd enforcement of this subpart is delegated to a State , local, or Tribal agency. (b) In delegating implementation and enforcement au thority of this subpart to a State, local, or Tribal agency under subpart E of this part, the authorities contained i n paragraph (c) of this section are retained by the Administrat or of U.S.Page 49 of 65

EPA and cannot be transferred to the State, local, or Tribal

agency. (c) The authorities that cannot be delegated to Sta te, local, or Tribal agencies are as specified in parag raphs (c)(1) through (4) of this section. (1) Approval of alternatives to the requirements in §§ 63.1380, 63., and 63.1387. (2) Approval of major alternatives to test methods under § 63.7(e)(2)(ii) and (f), as defined in § 63.90, and as required in this subpart. (3) Approval of major alternatives to monitoring un der § 63.8(f), as defined in § 63.90, and as required in this subpart. (4) Approval of major alternatives to recordkeeping and reporting under § 63.10(f), as defined in § 63.90, and as required in this subpart. §§ 63.1389-63.1399 [Reserved] Table 1 to Subpart NNN of Part 63—Applicability of General Provisions (40 CFR Part 63, Subpart A) to Subpart N NN
General provisions citation Requirement Applies to subpart NNN? Explanation
§ 63.1(a)(1)- (a) ( 45 ) Applicability Yes
. § 63.1(a)( 56 ) NoYes [Reserved].

63.1(a)(6)- (a)(8) Yes.Page 50 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation
§ 63.1(a) (7)- (9) No [Reserved].

§ 63.1(a)(10)- (a)(14)(12) Yes . § 63.1(b)(1)

- (b)(3) Initial Applicability Determination Yes .

§ 63.1(b)(2) No [Reserved].

§ 63.1(b)(3) Yes

§ 63.1(c)(1)- (c) (2) Applicability After Standard Established Yes .

§ 63.1(c)(3)

- (c)(4) No [Reserved].

§ 63.1 (c)(4)- (c)(5) -(e) Yes . 63.1(d) No [Reserved]. 63.1(e) Applicability of Permit Program Yes.

§ 63.2 Definitions Yes Additional definitions in §63.1381. § 63.3 (a)-(c) Units and Abbreviations Yes .
§ 63.4(a)(1)- (a) ( 32 ) Prohibited Activities Yes . § 63.4(a) (4)(3)- (5) No [Reserved].

63.4(a)(5) Yes.

§ 63.4(b)-(c) Yes .Page 51 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation
§ 63.5(a) (1)

- ( ab )(2) Construction/Recons truction Yes . 63.5(b)(1) Existing, New, Reconstructed Yes.

63.5(b)(2) No [Reserved].

§ 63.5(b)(3)- (b) ( 64 ) Yes . § 63.5(b)(5) No [Reserved].

§ 63.5(b)(6) Yes

§ 63.5(c) No [Reserved].

§ 63.5(d) Application for Approval of Construction / or Reconstruction Yes .

§ 63.5(e) Approval of Construction/Recons truction Yes .

§ 63.5(f) Approval of Construction/Recons truction Based on State Review Yes .

§ 63.6(a) -(d) Compliance with Standards and Maintenance Requirements Yes .

63.6(b)(1)- (b)(5) Yes. 63.6(b)(6) No [Reserved].Page 52 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation 63.6(b)(7) Yes. 63.6(c)(1) Compliance Date for Existing Sources Yes §63.1387 specifies compliance dates. 63.6(c)(2) Yes.
63.6(c)(3)- (c)(4) No [Reserved]. 63.6(c)(5) Yes. 63.6(d) No [Reserved]. § 63.6(e)(1)(i) General Duty to Mminimize Eemissions. No See § 63.1382(b) for general duty requirement 63.6(e)(1)- (e)(2) Operation & Maintenance Yes §63.1383 specifies operations/main tenance plan. § 63.6(e)(1)(ii) Requirement to correct malfunctions as soon as possible No §63.1382(b) specifies additional requirements. § 63.6(e)(1) (iii) Yes § 63.6(e)(2) No [Reserved]

§ 63.6(e)(3) Startup, Shutdown Malfunction (SSM) Plan Yes.No Startups and shutdowns addressed in §63.1388. § 63.6(f)(1)

- (f)(3) Compliance with Nonopacity Emission StandardsSSM exemption Yes.NoPage 53 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation § 63.6(f)(2)-(3) Methods for Determining Compliance Yes

§ 63.6(g) (1)- (g)(3) Use of an Alternative Nonopacity Standard Emission Standard Yes .

63.6(h) Opacity/VE Standards No Subpart NNN-no COMS, VE or opacity standards. § 63.6(h)(1) SSM Exemption No § 63.6(h)(2)-(j) Yes 63.6(i)(1)- (i)(14) Extension of Compliance Yes. 63.6(i)(15) No [Reserved].
63.6(i)(16) Yes. 63.6(j) Exemption from Compliance Yes.

§ 63.7(a)-(d) Yes 63.7(a) Performance Testing Requirements Yes §63.1384 has specific requirements. 63.7(b) Notification Yes. 63.7(c) Quality Assurance Program/Test Plan Yes. 63.7(d) Performance Testing Facilities Yes.
§ 63.7(e)(1)

- (e)(4) Conduct of Performance Test sing Yes.No See §63.1382(b)

§ 63.7(e)(2)-(4) YesPage 54 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation
§ 63.7(f) Alternative Test Method Yes . § 63.7(g) (1) Data Analysis Yes
. § 63.7(g)(2) No [Reserved]. § 63.7(g)(3) Yes § 63.7(h) Waiver of Performance Test s Yes . § 63.8(a) (1)

- (a)(2)(b) Monitoring Requirements Yes . 63.8(a)(3) No [Reserved]. 63.8(a)(4) Yes. 63.8(b) Conduct of Monitoring Yes. 63.8(c) CMS Operation/Maintenan ce Yes.

§ 63.8(c)(1)(i) General Dduty to Mminimize Eemissions and CMS operation No See §63.1382(c) for general duty requirement. § 63.8(c)(1)(ii) Yes § 63.8(c)(1)(iii) Requirement to Ddevelop SSM Plan for CMS No

§ 63.8(c)(2)- (d)(2) §63.8(d)(1)-(2) Quality Control Program Yes. § 63.8(d)(3) Written Pprocedures for CMS Yes, except for last sentenc e, which refers to SSM plan.Page 55 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation

SSM plans are not require d. § 63.8(e) -(g) Performance Evaluation for CMS Yes . 63.8(f) Alternative Monitoring Method Yes. 63.8(g) Reduction of Monitoring Data Yes.
§ 63.9(a) Notification Requirements Yes . § 63.9(b) (1)-(2) Initial Notifications Yes .

§ 63.9(b)(3) No [Reserved] § 63.9(b)(4)-(j) Yes 63.9(c) Request for Compliance Extension Yes.

63.9(d) New Source Notification for Special Compliance Requirements Yes.

63.9(e) Notification of Performance Test Yes. 63.9(f) Notification of VE/Opacity Test No Opacity/VE tests not required. 63.9(g) Additional CMS Notifications Yes. 63.9(h)(1)- (h)(3) Notification of Compliance Status Yes.

63.9(h)(4) No [Reserved].Page 56 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation 63.9(h)(5)- (h)(6) Yes. 63.9(i) Adjustment of Deadlines Yes. 63.9(j) Change in Previous Information Yes.
§ 63.10(a) Recordkeeping / and Rr eporting requirements Yes .

§ 63.10(b) (1) General Recordkeeping Requirements Yes .

§63.10(b)(2)(i) Recordkeeping of occurrence and duration of startups and shutdowns No

§ 63.10(b)(2)(ii) Recordkeeping of malfunctions No See §63.1386 (c)(1) through (3) for recordkeeping of occurrence and duration and actions taken during a failure to meet a standard. § 63.10(b)(2)(iii) Maintenance records Yes
§ 63.10(b)(2)(iv)- (v) Actions taken to minimize emissions during SSM No

§ 63.10(b)(2)(vi) Recordkeeping for CMS malfunctions Yes
§ 63.10(b)(2)(vii) -(xiv) Other CMS requirements Yes

§ 63.10(b)(3) Recordkeeping requirements for YesPage 57 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation applicability determinations § 63.10(c)(1)

- (6) Additional CMS Rr ecordkeeping requirements for sources with CMS Yes .

63.10(c)(2)- (c)(4) No [Reserved].
§ 63.10(c)( 57 )- (c) (8) Additional Rrecordkeeping Rrequirements for CMS – Iidentifying Eexceedances and E e xcess E e missions Yes .

§ 63.10(c)(9) No [Reserved]. § 63.10(c)(10)- ( 1511 ) Yes.No See §63.1386 for recordkeeping of malfunctions. § 63.10(c)(12)- (14) § 63.10(c)(15) Use of SSM Plan No § 63.10(d)(1)

- (4) General Reporting Requirements Yes . 63.10(d)(2) Performance Test Results Yes. 63.10(d)(3) Opacity or VE Observations No No limits for VE/opacity. 63.10(d)(4) Progress Reports Yes. § 63.10(d)(5) Startup, Shutdown, MalfunctionSSM Reports Yes.No See §63.1386(c) for reporting of malfunctions. § 63.10(e) (1)

- (e)(3)(f) Additional CMS Reports Excess Emission/CMS Performance Reports COMS Data Reports Yes .Page 58 of 65

General provisions citation Requirement Applies to subpart NNN? Explanation Recordkeeping/Repor ting Waiver 63.10(e)(4) Reporting COM Data No COM not required. 63.10(f) Waiver of Recordkeeping/Repor ting Yes.

§ 63.11(a) -(b) Control Device Requirements ; Applicability of Flares Yes.No Flares will not be used to comply with the emissions limits. 63.11(b) Flares No Flares not applicable. § 63.11(c) Alternative Work Practice for Monitoring Equipment for Leaks Yes

§ 63.11(d) Alternative Work Practice Standard Yes § 63.11(e) Alternative Work Practice Requirements Yes

§ 63.12 State Authority and Delegations Yes . § 63.13 State/Regional Addresses Yes . § 63.14 Incorporation by Reference No
§ 63.15 Availability of Information Yes . § 63.16 Performance Track Provisions Yes

Appendix A to Subpart NNN of Part 63—Method for the Determination of LOIPage 59 of 65

1. Purpose The purpose of this test is to determine the LOI of cured blanket insulation. The method is applicable to all cured board and blanket products. 2. Equipment 2.1 Scale sensitive to 0.1 gram. 2.2 Furnace designed to heat to at least 540 °C (1, 000 °F) and controllable to ±10 °C (50 °F). 2.3 Wire tray for holding specimen while in furnace
. 3. Procedure 3.1 Cut a strip along the entire width of the produ ct that will weigh at least 10.0 grams. Sample should be fr ee of dirt or foreign matter.

N OTE : Remove all facing from sample. 3.2 Cut the sample into pieces approximately 12 inc hes long, weigh to the nearest 0.1 gram and record. Pla ce in wire tray. Sample should not be compressed or overhang o n tray edges.

N OTE : On air duct products, remove shiplaps and overspr ay. 3.3 Place specimen in furnace at 540 °C (1,000 °F), ±10 °C (50 °F) for 15 to 20 minutes to insure complete oxi dation. After ignition, fibers should be white and should not be fused together. 3.4 Remove specimen from the furnace and cool to ro om temperature.Page 60 of 65

3.5 Weigh cooled specimen and wire tray to the near est 0.1 gram. Deduct the weight of the wire tray and then c alculate the loss in weight as a percent of the original specime n weight. Appendix B to Subpart NNN of Part 63—Free Formaldeh yde Analysis of Insulation Resins by Hydroxylamine Hydrochloride 1. Scope This method was specifically developed for water-so luble phenolic resins that have a relatively high free-fo rmaldehyde (FF) content such as insulation resins. It may also be suitable for other phenolic resins, especially those with a high FF
content. 2. Principle 2.1 a. The basis for this method is the titration o f the hydrochloric acid that is liberated when hydroxylam ine hydrochloride reacts with formaldehyde to form form aldoxine:

HCHO + NH2OH:HCl → CH2:NOH + H2O + HCl b. Free formaldehyde in phenolic resins is present as monomeric formaldehyde, hemiformals, polyoxymethyle ne hemiformals, and polyoxymethylene glycols. Monomeri c formaldehyde and hemiformals react rapidly with hyd roxylamine hydrochloride, but the polymeric forms of formaldeh yde must hydrolyze to the monomeric state before they can re act. The greater the concentration of free formaldehyde in a resin, thePage 61 of 65

more of that formaldehyde will be in the polymeric form. The hydrolysis of these polymers is catalyzed by hydrog en ions. 2.2 The resin sample being analyzed must contain en ough free formaldehyde so that the initial reaction with hydroxylamine hydrochloride will produce sufficient hydrogen ions to catalyze the depolymerization of the polyme ric formaldehyde within the time limits of the test met hod. The sample should contain approximately 0.3 grams free formaldehyde to ensure complete reaction within 5 minutes. 3. Apparatus 3.1 Balance, readable to 0.01 g or better. 3.2 pH meter, standardized to pH 4.0 with pH 4.0 bu ffer and pH 7 with pH 7.0 buffer. 3.3 50-mL burette for 1.0 N sodium hydroxide. 3.4 Magnetic stirrer and stir bars. 3.5 250-mL beaker. 3.6 50-mL graduated cylinder. 3.7 100-mL graduated cylinder. 3.8 Timer. 4. Reagents 4.1 Standardized 1.0 N sodium hydroxide solution. 4.2 Hydroxylamine hydrochloride solution, 100 grams per liter, pH adjusted to 4.00. 4.3 Hydrochloric acid solution, 1.0 N and 0.1 N.Page 62 of 65

4.4 Sodium hydroxide solution, 0.1 N. 4.5 50/50 v/v mixture of distilled water and methyl
alcohol. 5. Procedure 5.1 Determine the sample size as follows: a. If the expected FF is greater than 2 percent, go to Part A to determine sample size. b. If the expected FF is less than 2 percent, go to Part B to determine sample size. c. Part A: Expected FF ≥ 2 percent. Grams resin = 60/expected percent FF i. The following table shows example levels: Expected % free formaldehyde Sample size, grams 2 30.0 5 12.0 8 7.5 10 6.0 12 5.0 15 4.0 ii. It is very important to the accuracy of the res ults that the sample size be chosen correctly. If the mi lliliters of titrant are less than 15 mL or greater than 30 mL, reestimate the needed sample size and repeat the tests. d. Part B: Expected FF <2 percent Grams resin = 30/expected percent FFPage 63 of 65

i. The following table shows example levels: Expected % free formaldehyde Sample size, grams 2 15 1 30 0.5 60 ii. If the milliliters of titrant are less than 5 m L or greater than 30 mL, reestimate the needed sample si ze and repeat the tests. 5.2 Weigh the resin sample to the nearest 0.01 gram s into a 250-mL beaker. Record sample weight. 5.3 Add 100 mL of the methanol/water mixture and st ir on a magnetic stirrer. Confirm that the resin has dissol ved. 5.4 Adjust the resin/solvent solution to pH 4.0, us ing the prestandardized pH meter, 1.0 N hydrochloric acid, 0.1 N hydrochloric acid, and 0.1 N sodium hydroxide. 5.5 Add 50 mL of the hydroxylamine hydrochloride so lution, measured with a graduated cylinder. Start the timer
. 5.6 Stir for 5 minutes. Titrate to pH 4.0 with stan dardized 1.0 N sodium hydroxide. Record the milliliters of t itrant and the normality. 6. Calculations

7. Method Precision and AccuracyPage 64 of 65

Test values should conform to the following statist ical precision: Variance = 0.005 Standard deviation = 0.07 95% Confidence Interval, for a single determination = 0.2 8. Author This method was prepared by K. K. Tutin and M. L. F oster, Tacoma R&D Laboratory, Georgia-Pacific Resins, Inc. (Principle written by R. R. Conner.) 9. References 9.1 GPAM 2221.2. 9.2 PR&C TM 2.035. 9.3 Project Report, Comparison of Free Formaldehyde Procedures, January 1990, K. K. Tutin. Appendix C to Subpart NNN of Part 63—Method for the Determination of Product Density 1. Purpose The purpose of this test is to determine the produc t density of cured blanket insulation. The method is applicable to all cured board and blanket products. 2. Equipment One square foot (12 in. by 12 in.) template, or tem plates that are multiples of one square foot, for use in c utting insulation samples.Page 65 of 65

3. Procedure 3.1 Obtain a sample at least 30 in. long across the machine width. Sample should be free of dirt or foreign mat ter. 3.2 Lay out the cutting pattern according to the pl ant's written procedure for the designated product. 3.2 Cut samples using one square foot (or multiples of one square foot) template. 3.3 Weigh product and obtain area weight (lb/ft 2 ). 3.4 Measure sample thickness. 3.5 Calculate the product density: Density (lb/ft 3 ) = area weight (lb/ft 2 )/thickness (ft)