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Subpart XX - National Emission Standards for Ethylene Manufacturing Process Units Heat Exchange Systems and Waste Operations

RegSenseCFR SubpartCFR RegulationsEnvironmental Protection Agency (EPA)Hazardous Air PollutantsAir ProgramsEnvironmentalAir QualityEnglishFocus AreaUSA

Table 1 to Subpart XX of Part 63 - Hazardous Air Pollutants

Hazardous air pollutant CAS No.
Benzene 71432
1,3-Butadiene 106990
Cumene 98828
Ethyl benzene 100414
Hexane 110543
Naphthalene 91203
Styrene 100425
Toluene 108883
o-Xylene 95476
m-Xylene 108383
p-Xylene 106423

Table 2 to Subpart XX of Part 63 - Requirements of 40 CFR Part 61, Subpart FF, Not Included in the Requirements for This Subpart and Alternate Requirements

If the total annual benzene quatity for waste from your facility is * * * Do not comply with: Instead, comply with:
1. Less than 10 Mg/yr 40 CFR 61.340 §63.1093.
40 CFR 61.342(c)(3)(ii), (d), and (e) There is no equivalent requirement.
40 CFR 61.342(f) §63.1096.
40 CFR 61.355(j) and (k) There is no equivalent requirement.
40 CFR 61.356(b)(2)(ii), (b)(3) through (b)(5) There is no equivalent requirement.
The requirement to submit the information required in 40 CFR 61.357(a) to the Administrator within 90 days after January 7, 1993 The requirement to submit the information required in 40 CFR 61.357(a) as part of the Initial Notification required in 40 CFR 63.1110(c).
The requirement in 40 CFR 61.357(d) to submit the information in 40 CFR 61.357(d)(1) and (d)(2) if the TAB quantity from your facility is equal to or greater than 10 Mg/yr The requirement to submit the information in 40 CFR 61.357(d)(1) and (d)(2) for spent caustic, dilution steam blowdown, and continuous butadiene waste streams.
The requirement in 40 CFR 61.357(d)(1) to submit the information required in 40 CFR 63.357(d)(1) to the Administrator within 90 days after January 7, 1993 The requirement to submit the information required in 40 CFR 61.357(d)(1) as part of the Notification of Compliance Status required in 40 CFR 63.1110(d).
40 CFR 61.357(d)(3) through (d)(5) There is no equivalent requirement.
2. Greater than or equal to 10 Mg/yr 40 CFR 61.340 §63.1093.
40 CFR 61.342(f) §63.1096.
The requirement to submit the information required in 40 CFR 61.357(a) to the Administrator within 90 days after January 7, 1993 The requirement to submit the information required in 40 CFR 61.357(a) as part of the Initial Notification required in 40 CFR 63.1110(c).
The requirement in 40 CFR 61.357(d) to submit the information in 40 CFR 61.357(d)(1) and (d)(2) if the TAB quantity from your facility is equal to or greater than 10 Mg/yr The requirement to submit the information in 40 CFR 61.357(d)(1) and (d)(2) as part of the Notification of Compliance Status required in 40 CFR 63.1110(d).

[85 FR 40423, July 6, 2020]

Source: 67 FR 46271, July 12, 2002, unless otherwise noted.

['Air Programs']
['Hazardous Air Pollutants']
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