[Code of Federal Regulations] [Title 40, Volume 16] [Revised as of July 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR86.004-26] [Page 51-52] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 86--CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES--Table of Contents Subpart A--General Provisions for Emission Regulations for 1977 and Sec. 86.004-26 Mileage and service accumulation; emission measurements. Section 86.004-26 includes text that specifies requirements that differ from Sec. 86.094-26, Sec. 86.095-26, Sec. 86.096-26, Sec. 86.098- 26, Sec. 86.000-26, or Sec. 86.001-26. Where a paragraph in Sec. 86.094- 26, Sec. 86.095-26, Sec. 86.096-26, Sec. 86.098-26, Sec. 86.000-26 or Sec. 86.001-26 is identical and applicable to Sec. 86.004-26, this may be indicated by specifying the corresponding paragraph and the statement ``[Reserved]. For guidance see Sec. 86.094-26.'' or [Reserved]. For guidance see Sec. 86.095-26.'' or ``[Reserved]. For guidance see Sec. 86.096-26.'' or ``[Reserved]. For guidance see Sec. 86.098-26.'' or ``[Reserved]. For guidance see Sec. 86.000-26.'' or ``[Reserved]. For guidance see Sec. 86.001-26.''. (a)(1) [Reserved]. For guidance see Sec. 86.094-26. (a)(2) through (a)(3)(i)(A) [Reserved]. For guidance see Sec. 86.000-26. (a)(3)(i)(B) [Reserved]. For guidance see Sec. 86.094-26. (a)(3)(i)(C) [Reserved]. For guidance see Sec. 86.098-26. (a)(3)(i)(D) through (a)(3)(ii)(B) [Reserved]. For guidance see Sec. 86.094-26. [[Page 52]] (a)(3)(ii)(C) [Reserved]. For guidance see Sec. 86.098-26. (a)(3)(ii)(D) through (a)(4)(i)(B)(4) [Reserved]. For guidance see Sec. 86.094-26. (a)(4)(i)(C) [Reserved]. For guidance see Sec. 86.000-26. (a)(4)(i)(D) through (a)(6)(ii) [Reserved]. For guidance see Sec. 86.094-26. (a)(6)(iii) [Reserved]. For guidance see Sec. 86.000-26. (a)(7) through (a)(9)(i) [Reserved]. For guidance see Sec. 86.094- 26. (a)(9)(ii) [Reserved]. For guidance see Sec. 86.000-26. (a)(9)(iii) through (b)(2) introductory text [Reserved]. For guidance see Sec. 86.094-26. (b)(2)(i) through (b)(2)(ii) [Reserved]. For guidance see Sec. 86.000-26. (b)(2)(iii) [Reserved]. For guidance see Sec. 86.094-26. (b)(2)(iv) [Reserved]. For guidance see Sec. 86.001-26. (b)(3) through (b)(4)(i)(B) [Reserved]. For guidance see Sec. 86.094-26. (b)(4)(i)(C) [Reserved]. For guidance see Sec. 86.001-26. (b)(4)(i)(D) through (b)(4)(ii)(B) [Reserved]. For guidance see Sec. 86.095-26. (b)(4)(ii)(C) [Reserved]. For guidance see Sec. 86.001-26. (b)(4)(ii)(D) [Reserved]. For guidance see Sec. 86.095-26. (b)(4)(iii) [Reserved] (b)(4)(iv) [Reserved]. For guidance see Sec. 86.094-26. (c)(1) Paragraph (c) of this section applies to heavy-duty engines. (2) Two types of service accumulation are applicable to heavy-duty engines, as described in paragraphs (c)(2)(i) and (ii) of this section. For Otto-cycle heavy-duty engines exhaust emissions, the service accumulation method used by a manufacturer must be designed to effectively predict the deterioration of emissions in actual use over the full useful life of the of the candidate in-use vehicles and must cover the breadth of the manufacturer's product line that will be covered by the durability procedure. Manufacturers not selecting Options 1 or 2 described in Sec. 86.005-10(f) may certify Otto-cycle engines using the provisions contained in Sec. 86.094-26(c)(2) rather than those contained in this paragraph (c)(2) for 2004 model year engine families certified using carry-over durability data, except for those engines used for early credit banking as allowed in Sec. 86.000-15(k). (i) Service accumulation on engines, subsystems, or components selected by the manufacturer under Sec. 86.094-24(c)(3)(i). The manufacturer determines the form and extent of this service accumulation, consistent with good engineering practice, and describes it in the application for certification. (ii) Dynamometer service accumulation on emission data engines selected under Sec. 86.094-24(b)(2) or (3). The manufacturer determines the engine operating schedule to be used for dynamometer service accumulation, consistent with good engineering practice. A single engine operating schedule shall be used for all engines in an engine family- control system combination. Operating schedules may be different for different combinations. (3) Exhaust emission deterioration factors will be determined on the basis of the service accumulation described in Sec. 86.000-26(b)(2)(i) and related testing, according to the manufacturer's procedures. (c)(4) [Reserved]. For guidance see Sec. 86.096-26. (d)(1) through (d)(2)(i) [Reserved]. For guidance see Sec. 86.094- 26. (d)(2)(ii) [Reserved]. For guidance see Sec. 86.000-26. (d)(3) [Reserved]. For guidance see Sec. 86.094-26. (d)(4) and (5) [Reserved]. (d)(6) [Reserved]. For guidance see Sec. 86.094-26. [65 FR 59947, Oct. 6, 2000]