StacksVerified U.S. regulatory reference

40 CFR §1045.101

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)You must show that your engines meet the following requirements:
    1. (1)Outboard and personal watercraft engines must meet the exhaust emission standards specified in § 1045.103.
    2. (2)Sterndrive/inboard engines must meet the exhaust emission standards specified in § 1045.105. You may optionally meet these standards earlier than we require, as specified in § 1045.145(b).
    3. (3)Sterndrive/inboard engines must meet the engine-diagnostic requirements in § 1045.110.
    4. (4)All engines must meet the requirements in § 1045.115.
  2. (b)It is important that you read § 1045.145 to determine if there are other interim requirements or interim compliance provisions that apply for a limited time.