part_subject: "CONTROL OF EMISSIONS FROM RECREATIONAL ENGINES AND VEHICLES"
subpart_code: "G"
subpart_subject: "Compliance Provisions"
section_number: "1051.640"
section_subject: "What special provisions apply for custom off-highway motorcycles that are similar to highway motorcycles?"
cfr_reference: "40 CFR 1051.640"
title_name: "Title 40"
title_subject: "Protection of Environment"
parts_covered: "Parts 1000 to 1059"
revised_date: "Revised as of July 1, 2017"
publication_date: "As of July 1, 2017"
contains_description: "Containing a codification of documents of general applicability and future effect"
publication_info: "Published by the Office of the Federal Register National Archives and Records Administration as a Special Edition of the Federal Register"
---
You may ask to exempt custom-designed off-highway motorcycles that are substantially similar to highway motorcycles under the display exemption provisions of 40 CFR 86.407-78(c). Motorcycles exempt under this provision are subject to the restrictions of 40 CFR 86.407-78(c) and are considered to be motor vehicles for the purposes of this part 1051.