part_subject: "CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION ENGINES"
subpart_code: "B"
subpart_subject: "Emission Standards and Related Requirements"
section_number: "1048.140"
section_subject: "What are the provisions for certifying Blue Sky Series engines?"
cfr_reference: "40 CFR 1048.140"
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"
---
This section defines voluntary standards for a recognized level of superior emission control for engines designated as “Blue Sky Series” engines. If you certify an engine family under this section, it is subject to all the requirements of this part as if these voluntary standards were mandatory. To receive a certificate of conformity as “Blue Sky Series,” you must certify to one of the sets of exhaust emission standards in the following table: