United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 2012_register executive 2012-06-08 article Proposed Rules D09002ee1c7fce20b D09002ee1c7fce300 United States Environmental Protection Agency originator org United States Government Agency or Subagency This proposal consists of three parts. First, EPA is proposing revisions to its heavy-duty diesel regulations that would enable emergency vehicles, such as dedicated ambulances and fire trucks, to perform their mission-critical life-saving work without risking that abnormal conditions of the emission control system could lead to decreased engine power, speed or torque. The revisions would allow manufacturers to request and EPA to approve modifications to emission control systems on emergency vehicles so they do not interfere with the vehicles' missions. Second, EPA is proposing to revise the emission-related maintenance and scheduled maintenance intervals for all motor vehicles and nonroad compression-ignition engines to specify minimum maintenance intervals for replenishment of consumable chemical reductant in connection with the use of selective catalytic reduction technologies. Third, EPA is proposing to offer short-term relief for nonroad engines from performance inducements related to the emission control system, for general purpose nonroad vehicles while operating in temporary emergency service. These actions are not expected to result in any significant changes in regulatory burdens or costs. 77 FR 34149 https://www.govinfo.gov/app/details/FR-2012-06-08/2012-13087 2012-13087 fr08jn12-16 RIN 2060-AR46 6550-50-P EPA-HQ-OAR-2011-1032 FRL-9673-2 https://www.govinfo.gov/app/details/FR-2012-06-08/2012-13087 https://www.govinfo.gov/content/pkg/FR-2012-06-08/html/2012-13087.htm https://www.govinfo.gov/content/pkg/FR-2012-06-08/pdf/2012-13087.pdf Environmental Protection Air Pollution Control Penalties Confidential Business Information Imports Labeling Motor Vehicle Pollution Reporting and Recordkeeping Requirements Research Warranties Administrative Practice and Procedure 30 p. 34149 34178 77 FR 34149 Title 40 Part 1039 40 CFR Part 1039 Title 40 Part 85 40 CFR Part 85 Title 40 Part 86 40 CFR Part 86 RIN 2060-AR46 Heavy-Duty Highway Program: Revisions for Emergency Vehicles and SCR Maintenance; Federal Register Vol. 77, Issue PRORULE 2012-13087 ENVIRONMENTAL PROTECTION AGENCY 2012-07-27 EPA-HQ-OAR-2011-1032 FRL-9673-2 6550-50-P 2012-13087 Notice of proposed rulemaking.

This proposal consists of three parts. First, EPA is proposing revisions to its heavy-duty diesel regulations that would enable emergency vehicles, such as dedicated ambulances and fire trucks, to perform their mission-critical life-saving work without risking that abnormal conditions of the emission control system could lead to decreased engine power, speed or torque. The revisions would allow manufacturers to request and EPA to approve modifications to emission control systems on emergency vehicles so they do not interfere with the vehicles' missions. Second, EPA is proposing to revise the emission-related maintenance and scheduled maintenance intervals for all motor vehicles and nonroad compression-ignition engines to specify minimum maintenance intervals for replenishment of consumable chemical reductant in connection with the use of selective catalytic reduction technologies. Third, EPA is proposing to offer short-term relief for nonroad engines from performance inducements related to the emission control system, for general purpose nonroad vehicles while operating in temporary emergency service. These actions are not expected to result in any significant changes in regulatory burdens or costs.

Comments on all aspects of this proposal must be received on or before July 27, 2012. See the SUPPLEMENTARY INFORMATION section on "Public Participation" for more information about written comments. Lauren Steele, Environmental Protection Agency, Office of Transportation and Air Quality, Assessment and Standards Division, 2000 Traverwood Drive, Ann Arbor, Michigan 48105; telephone number: 734-214-4788; fax number: 734-214-4816; email Environmental Protection Air Pollution Control Penalties Confidential Business Information Imports Labeling Motor Vehicle Pollution Reporting and Recordkeeping Requirements Research Warranties Administrative Practice and Procedure Heavy-Duty Highway Program: Revisions for Emergency Vehicles and SCR Maintenance , a-and-r-docket@epa.gov http://www.arb.ca.gov/diesel/tru/documents/ashguide.pdf http://www.deepriverct.us/firehousestudy/reports/Apparatus-Duty-Cycle.pdf http://www.deltaveh.com/f.pdf http://www.epa.gov/nonroad-diesel/2004fr/420r04007e.pdf http://www.epa.gov/otaq/highway-diesel/regs/2007-heavy-duty-highway.htm http://www.epa.gov/otaq/highway-diesel/regs/ria-iii.pdf http://www.meca.org/galleries/default-file/Filter_Maintenance_White_Paper_605_final.pdf http://www.nfpa.org/catalog/product.asp?title=Code-1901-2009-Automotive-Fire-Apparatus&category%5Fname=&pid=190109&target%5Fpid=190109&src%5Fpid=&link%5Ftype=search&icid= http://www.truckline.com/Federation/Councils/TMC/Documents/2012%20Annual%20Meeting%20and%20Exhibition%20Documents/TMC12A_TECH2.pdf http://www.volvotrucks.com/SiteCollectionDocuments/VTNA_Tree/ILF/Products/2010/09-VTM075_NoRegen_SS_041609.pdf www.iso.org www.regulations.gov Vol. 77, no. 111 Office of the Federal Register, National Archives and Records Administration 2012-06-08 continuing daily deposited born digital 242 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-2012-06-08 P0b002ee1828ea62e 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr08jn12 https://www.govinfo.gov/app/details/FR-2012-06-08 https://www.govinfo.gov/content/pkg/FR-2012-06-08/pdf/FR-2012-06-08.pdf https://www.govinfo.gov/content/pkg/FR-2012-06-08/xml/FR-2012-06-08.xml fdlp 33945 34178 DGPO 2012-06-08 2024-06-03 FR-2012-06-08 machine generated eng FR FR-2012-06-08 77 111