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