Section 143.301 - Load line requirements(a) Vessels, including foreign vessels, which would be subject to the requirements of subchapter E of 46 CFR chapter I concerning load lines when arriving at or proceeding to sea from any port or place within the United States must comply with those requirements when engaged in activities on the OCS.(b) Load line certificates and load line exemption certificates issued or accepted under subchapter E of 46 CFR chapter I are accepted as evidence of compliance with paragraph (a) of this section.