Presentation by Scott Taylor, Taylor Environmental Services, on potential changes to the Portable Engine ATCM program and what it may mean for the asphalt pavement industry. Presentation delivered during the CalAPA Fall Asphalt Pavement Conference Oct. 26-27, 2016 in Sacramento, Calif.

1. Portable Engine ATCM
POTENTIAL CHANGES

2. Draft ATCM Changes
Emission Reduction Strategies
Tier phase out for all fleets:
Fleet defined as all engines operated in California owned
by a single entity
– Small fleets are 750 total bhp or less, large fleets are >750 total bhp
– Each military installation will be it’s own fleet
– Pre-2007 on-highway engines will be treated asTier 3 for phase out

3. Draft ATCM Changes
Large fleets have fleet average option:
 Criteria for large fleets to use fleet average
— All engines in fleet subject to ATCM must be registered in PERP
— Must submit a request by 2019 to use option
— If fleet has unpermitted engines after 2019, out of fleet average
Retrofitted engines exempt from phase-out requirements
— Must have verified Level 3 diesel particulate filter
— Still included in Fleet Average option for large fleets

4. Draft ATCM Changes
 Low-use and emergency-use engines exempt from fleet
requirements
— Low-use engines increased to 200 hr/yr
— Must designateTier 1 & 2 engines 6 months prior to phase-out
— Can’t convertTier 1 & 2 to regular use unless exceed limitation
— Separated by size category (<175, 175 - 750, >750)
— Two extra years for phase-out OR
— Double countT4 in fleet average for first two dates
 Benefit for fleets in compliance with 2017 fleet standards
 Benefit for removingTier 1 andTier 2 engines early
— Must be removed from service in California
— Remove allTier 1 by 1/1/2019 andTier 2 (≤750 bhp) by 1/1/2020
— Extra 2 years forTier 3 (including flex) on phase-out schedule only

5. Portable Equipment Registration
(PERP)
• INITIAL REGISTRATION NOT AFFECTED, CURRENT TIER ONLY
• PERP RENEWAL APPLICATIONS WILL CONTINUE TO BE ACCEPTED
• TIER O ENGINES REMOVED BY JANUARY 1, 2017 (INCLUDING LOW USE AND EMERGENCY)

6. Next Steps
• PUBLIC WORKSHOP ON 11/10/2016 IN SACRAMENTO
• FINAL DRAFT LANGUAGE BY Q1 OF 2017
• GO BEFORE CARB BY MARCH 2017

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Class Group 1 Group 2
Class 1 82 95
Class 2 76 88
Class 3 84 90

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