[Code of Federal Regulations] [Title 40, Volume 24] [Revised as of July 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR205.152] [Page 130-132] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 205_TRANSPORTATION EQUIP MENT NOISE EMISSION CONTROLS--Table of Contents Subpart D_Motorcycles Sec. 205.152 Noise emission standards. (a) Noise emission standards. (1) Street motorcycles of the following and subsequent model years must not produce noise emissions in excess of the levels indicated: [[Page 131]] (i) Street motorcycles other than those that meet the definition of Sec. 205.151(a)(2)(ii): ------------------------------------------------------------------------ A-weighted Model year noise level (dB) ------------------------------------------------------------------------ (A) 1983.................................................... 83 (B) 1986.................................................... 80 ------------------------------------------------------------------------ (ii) Street motorcycles that meet the definition of Sec. 205.151(a)(2)(ii)(moped-type street motorcycles): ------------------------------------------------------------------------ A-weighted Model year noise level (dB) ------------------------------------------------------------------------ (A) 1983.................................................... 70 ------------------------------------------------------------------------ (2) Off-road motorcycles of the following and subsequent model years must not produce noise emissions in excess of the levels indicated: (i) Off-road motorcycles with engine displacements of 170 cc and lower: ------------------------------------------------------------------------ A-weighted Model year noise level (dB) ------------------------------------------------------------------------ (A) 1983.................................................... 83 (B) 1986.................................................... 80 ------------------------------------------------------------------------ (ii) Off-road motorcycles with engine displacements greater than 170 cc: ------------------------------------------------------------------------ A-weighted Model year noise level (dB) ------------------------------------------------------------------------ (A) 1983.................................................... 86 (B) 1986.................................................... 82 ------------------------------------------------------------------------ (3) Street motorcycles must be designed, built and equipped so that, when properly maintained and used, they will not produce noise emissions in excess of the levels specified in paragraph (a)(1) of this section, for an Acoustical Assurance Period of one year or a distance of 6000 km (3730 mi) after the time of sale to the ultimate purchaser, whichever occurs first. (4) Off-road motorcycles must be designed, built and equipped so that, when properly maintained and used, they will not produce noise emissions in excess of the levels specified in paragraph (a)(2) of this section, for an Acoustical Assurance Period of one year or a distance of 3000 km (1865 mi) after the time of sale to the ultimate purchaser, whichever occurs first. (5) At the time of sale to the ultimate purchaser, all products must comply with the standards set forth in paragraphs (a)(1) and (2) of this section. (b) Measurement procedure. (1) The standards set forth in paragraph (a) of this section refer to noise emissions as measured in accordance with the measurement methodology specified in Appendix I-1 for all motorcycles except those street motorcycles that meet the definition of Sec. 205.151(a)(2)(ii). (2) The standards set forth in paragraph (a) of this section for street motorcycles that meet the definition of Sec. 205.151(a)(2)(ii) (moped-type street motorcycles) refer to noise emissions measured in accordance with the measurement methodology specified in Appendix I-2. (c) Low noise emission product standard. For the purpose of Low- Noise-Emission Product certification pursuant to 40 CFR part 203, motorcycles procured by the Federal government after the following dates must not produce noise emissions in excess of the noise levels indicated: (1) For street motorcycles with engine displacement greater than 170 cc: ------------------------------------------------------------------------ A-weighted Date noise level (dB) ------------------------------------------------------------------------ (i) January 1, 1982......................................... 73 (ii) January 1, 1989........................................ 71 ------------------------------------------------------------------------ (2) For off-road motorcycles with engine displacements greater than 170 cc: ------------------------------------------------------------------------ A-weighted Date noise level (dB) ------------------------------------------------------------------------ (i) January 1, 1982......................................... 75 ------------------------------------------------------------------------ (3) For off-road motorcycles with engine displacement 170 cc and lower and street motorcycles with engine displacement 170 cc and lower that do not meet the definition of Sec. 205.151(a)(2)(ii): ------------------------------------------------------------------------ A-weighted Date noise level (dB) ------------------------------------------------------------------------ (i) January 1, 1982......................................... 71 ------------------------------------------------------------------------ (4) For street motorcycles that meet the definition of Sec. 205.151(a)(2)(ii) (moped-type street motorcycles): ------------------------------------------------------------------------ A-weighted Date noise level (dB) ------------------------------------------------------------------------ (i) January 1, 1982......................................... 60 ------------------------------------------------------------------------ [[Page 132]] These levels refer to noise emissions as measured in accordance with the measurement methodologies specified in appendix I. LNEP's must also meet all requirements contained in paragraphs (a)(3), (4), and (5), of this section. (Secs. 10 and 15 of the Noise Control Act, (42 U.S.C. 4909, 4914))