Federal regulations · Through 2026-08-25 · Newer source version available

40 CFR 1048.10: How is this part organized?

This part 1048 is divided into the following subparts:
(a) Subpart A of this part defines the applicability of part 1048 and gives an overview of regulatory requirements.
(b) Subpart B of this part describes the emission standards and other requirements that must be met to certify engines under this part. Note that § 1048.145 discusses certain interim requirements and compliance provisions that apply only for a limited time.
(c) Subpart C of this part describes how to apply for a certificate of conformity.
(d) Subpart D of this part describes general provisions for testing production-line engines.
(e) Subpart E of this part describes general provisions for testing in-use engines.
(f) Subpart F of this part describes how to test your engines (including references to other parts of the Code of Federal Regulations).
(g) Subpart G of this part and 40 CFR part 1068 describe requirements, prohibitions, and other provisions that apply to engine manufacturers, equipment manufacturers, owners, operators, rebuilders, and all others.
(h) [Reserved]
(i) Subpart I of this part contains definitions and other reference information.

Where this section sits in the code

Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER U—AIR POLLUTION CONTROLS
PART 1048—CONTROL OF EMISSIONS FROM NEW, LARGE NONROAD SPARK-IGNITION ENGINES
Subpart A—Overview and Applicability

This part 1048 is divided into the following subparts:

(a) Subpart A of this part defines the applicability of part 1048 and gives an overview of regulatory requirements.

(b) Subpart B of this part describes the emission standards and other requirements that must be met to certify engines under this part. Note that § 1048.145 discusses certain interim requirements and compliance provisions that apply only for a limited time.

(d) Subpart D of this part describes general provisions for testing production-line engines.

(e) Subpart E of this part describes general provisions for testing in-use engines.

(f) Subpart F of this part describes how to test your engines (including references to other parts of the Code of Federal Regulations).

(g) Subpart G of this part and 40 CFR part 1068 describe requirements, prohibitions, and other provisions that apply to engine manufacturers, equipment manufacturers, owners, operators, rebuilders, and all others.

(h) [Reserved]

(i) Subpart I of this part contains definitions and other reference information.

Collected 2026-08-27T02:26:04Z. Source file · JSON

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