[Code of Federal Regulations] [Title 40, Volume 17] [Revised as of July 1, 2004] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR86.000-25] [Page 23-24] 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 Later Sec. 86.000-25 Maintenance. Section 86.000-25 includes text that specifies requirements that differ from Sec. 86.094-25 or Sec. 86.098-25. Where a paragraph in Sec. 86.094-25 or Sec. 86.098-25 is identical and applicable to Sec. 86.000-25, this may be indicated by specifying the corresponding paragraph and the statement ``[Reserved]. For guidance see [[Page 24]] Sec. 86.094-25.'' or ``[Reserved]. For guidance see Sec. 86.098-25.'' (a)(1) Applicability. This section applies to light-duty vehicles, light-duty trucks, and heavy-duty engines. (a)(2) Maintenance performed on vehicles, engines, subsystems, or components used to determine exhaust, evaporative or refueling emission deterioration factors is classified as either emission-related or non- emission-related and each of these can be classified as either scheduled or unscheduled. Further, some emission-related maintenance is also classified as critical emission-related maintenance. (b) introductory text through (b)(3)(vi)(D) [Reserved]. For guidance see Sec. 86.094-25. (b)(3)(vi)(E)-(b)(3)(vi)(J) [Reserved]. For guidance see Sec. 86.098-25. (b)(3)(vii)-(b)(6)(i)(E) [Reserved]. For guidance see Sec. 86.094- 25. (b)(6)(i)(F) [Reserved]. For guidance see Sec. 86.098-25. (b)(6)(i)(G)-(H) [Reserved]. For guidance see Sec. 86.094-25. (i) When air conditioning SFTP exhaust emission tests are required, the manufacturer must document that the vehicle's air conditioning system is operating properly and that system parameters are within operating design specifications prior to test. Required air conditioning system maintenance is performed as unscheduled maintenance and does not require the Administrator's approval. [61 FR 54883, Oct. 22, 1996]