5 Colo. Code Regs. § 1001-14-V
Denver Attainment/Maintenance Area (Modeling Domain) | PM10: 2015 through 2021: 54 tons/day; 2022 and beyond: 55 tons/day. Nitrogen Oxides: 2015 through 2021: 70 tons/day; 2022 and beyond: 56 tons/day Trading provisions: Trading of PM10 for NOx, or NOx for PM10 to adjust emission budgets for purposes of demonstrating transportation conformity shall be allowed using the emission trading formula as follows: For trades necessary to increase a primary PM10 budget, 15.0 tons/day of NOx will be taken from the NOx budget to increase the primary PM10 budget by 1.0 tons/day, a ration of 15 to 1. For trades necessary to increase a NOx budget, 1.0 tons/day of primary PM10 will be taken from the primary PM10 budget to increase the NOx budget by 12.0 tons/day, a ratio of 1 to 12. Implementation of trading provisions: In the event the MPO cannot demonstrate consistency with the specific PM10 and NOx mobile source emission budgets, the trading provisions may be utilized only after the MPO has considered all reasonably available local control measures to meet the budgets. The MPO must demonstrate the need for trading through the usual consultation procedures for state implementation plan development delineated in Section IV (F) of AQCC Regulation Number 10, Criteria for Analysis of Conformity. If trading is utilized, the MPO shall include the following information in the transportation conformity determination: 1) The budget for primary PM10 and NOx for each required year of the conformity determination, before trading is employed; (2) The portion of the original budget to be used to supplement a wanting budget, for each required year for the conformity determination; (3) The increased budget that results from trading, along with relevant calculations, and (4) the resulting primary PM10 and NOx budgets for each required year of the conformity demonstration. The MPO shall then compare projected emissions to the adjusted PM10 and NOx motor vehicle emission budgets to demonstrate conformity. |
Denver Attainment/Maintenance Area | Ozone Precursors (attainment/maintenance area boundary) NOx 2002 and beyond 134 tpsd VOC 2002 and beyond 119 tpsd (tpsd = tons per summer day |
Denver Metro Area/North Front Range 8-Hour Ozone Moderate Nonattainment Area (for the 1997 8-Hour Ozone NAAQS; to be superseded by the emissions budgets associated with the 2008 8-Hour Ozone NAAQS upon the effective date of EPA's determination of adequacy for transportation conformity purposes) (State Only) | Regional Emissions Budgets NOx: 122.9 tons/day VOCs: 109.2 tons/day Southern Sub-Regional Emissions Budgets NOx: 102.4 tons/day VOCs: 89.7 tons/day Northern Sub-Regional Emissions Budgets NOx: 20.5 tons/day VOCs: 19.5 tons/day |
Denver Metro Area/North Front Range 8-Hour Ozone Serious Nonattainment Area (for the 2008 8-Hour Ozone NAAQS; these emissions budgets will supersede the previous emissions budgets upon the effective date of EPA's determination of adequacy for transportation conformity purposes) (State Only) | Regional Emissions Budgets NOx: 54.7 tons/day VOCs: 49.4 tons/day Southern Sub-Regional Emissions Budgets NOx: 45 tons/day VOCs: 41.2 tons/day Northern Sub-Regional Emissions Budgets NOx: 9.7 tons/day VOCs: 8.2 tons/day |
Denver Metro Area/North Front Range 8-Hour Ozone Nonattainment Area (for the 2008 8-Hour Ozone NAAQS; these emissions budgets will supersede the previous emissions budgets upon the effective date of EPA's determination of adequacy for transportation conformity purposes) | Regional Emissions Budgets NOx: 73 tons/day VOCs: 55 tons/day Southern Sub-Regional Emissions Budgets NOx: 61 tons/day VOCs: 47 tons/day Northern Sub-Regional Emissions Budgets NOx: 12 tons/day VOCs: 8 tons/day |
Denver Metro Area/North Front Range 8-Hour Ozone Nonattainment Area (for the 2008 8-Hour Ozone NAAQS; these emissions budgets will supersede the previous emissions budgets upon the effective date of EPA's determination of adequacy for transportation conformity purposes) | Regional Emissions Budgets NOx: 21.7 tons/day VOCs: 27.0 tons/day Southern Sub-Regional Emissions Budgets NOx: 18.3 tons/day VOCs: 23.0 tons/day Northern Sub-Regional Emissions Budgets NOx: 3.4 tons/day VOCs: 4.0 tons/day |
Denver Metro Area/North Front Range and northern Weld County Ozone Nonattainment Area (for the 2015 8-Hour Ozone NAAQS; these emissions budgets will supersede the previous emissions budgets upon the effective date of EPA's determination of adequacy for transportation conformity purposes) | Regional Emissions Budgets NOx: 31.6 tons/day VOCs: 35.2 tons/day Southern Sub-Regional Emissions Budgets NOx: 26.8 tons/day VOCs: 30.0 tons/day Northern Sub-Regional Emissions Budgets NOx: 4.8 tons/day VOCs: 5.2 tons/day |
Aspen Attainment/Maintenance Area | PM10 2023 and Beyond: 1,146 lbs./day |
Cañon City | PM10 2020 and Beyond: 1,613 lbs./day |
Lamar (Modeling Area) | PM10 2025 and Beyond: 764 lbs./day |
Pagosa Springs (Modeling Area) | PM10 2021 and Beyond: 946 lbs./day |
Steamboat Springs (Modeling Area) | PM10 2015 through 2023: 21,773 lbs./day PM10 2024 and Beyond: 1,103.2 lbs./day |
Telluride (Modeling Area) | PM10 2021 and Beyond: 1,008 lbs./day |
Unless otherwise specified, the geographic coverage of each of the area Motor Vehicle Emissions Budgets shall be the nonattainment or attainment maintenance area as defined in the respective state implementation plans.
The 16,244 pounds-per-day PM10 emission budget established in Section V.A.1. shall take effect as a matter of state law when such budget takes effect as a matter of federal law pursuant to 40 CFR Section 93.118. Until such time as the 16,244 pounds-per-day budget takes effect pursuant to this section and 40 CFR Section 93.118, the PM10 emission budget for the Aspen PM10 Nonattainment Area shall be 13,974 pounds-per-day.
The 946 pounds-per-day PM10 emission budget established in Section V.A.1. shall take effect as a matter of state law when budget takes effect as a matter of federal law pursuant to 40 CFR Section 93.118. Until such time as the 946 pounds-per-day budget takes effect pursuant to this section and 40 CFR Section 93.118, the PM10 emission budget for the Pagosa Springs PM10 attainment/maintenance area shall be 7,486 pounds-per-day.
The 1,613 pounds-per-day PM10 emission budget established in Section V.A.1. shall take effect as a matter of state law when such budget takes effect as a matter of federal law pursuant to 40 CFR Section 93.118. Until such time as the 1,613 pounds-per-day budget takes effect pursuant to this section and 40 CFR section 93.118, the PM10 emission budget for the Cañon City PM10 attainment/maintenance area shall be 7,439 pounds-per-day.
The 764 pounds-per-day PM10 emission budget established in Section V.A.1. shall take effect as a matter of state law when such budget takes effect as a matter of federal law pursuant to 40 CFR Section 93.118. Until such time as the 764 pounds-per-day budget takes effect pursuant to this section and 40 CFR Section 93.118, the PM10 emission budget for the Lamar PM10 Nonattainment Area shall be 7,534 pounds-per-day.
The 21,773 pounds-per-day PM10 emission budget established in Section V.A.1. shall take effect as a matter of state law when such budget takes effect as a matter of federal law pursuant to 40 CFR Section 93.118. Until such time as the 21,773 pounds-per-day budget takes effect pursuant to this section and 40 CFR Section 93.118, the PM10 emission budget for the Steamboat Springs PM10 Nonattainment Area shall be 20,682 pounds-per-day.
The 1,108 pounds-per-day PM10 emission budget established in Section V.a.1. shall take effect as a matter of state law when such budget takes effect as a matter of federal law pursuant to 40 CFR Section 93.118. Until such time as the 1,108 pounds-per-day budget takes effect pursuant to this section and 40 CFR Section 93.118, the PM10 emission budget for the Telluride PM10 Attainment Area shall be 10,001 pounds-per-day (2012 and beyond).
The geographic coverage for the Denver PM10 Motor Vehicle Emissions Budget is the modeling domain contained in the most recent revision to the Denver PM10 state implementation plan and technical support documentation, which are available for inspection at the offices of the AQCC located at 4300 Cherry Creek Drive South, Denver, Colorado.
The emissions budgets set out in this section shall be used for regional emissions analyses required for conformity determinations.
5 CCR 1001-14-V