33 C.F.R. § 154.1017
(a) The owner or operator of an MTR facility identified only in § 154.1015(b), or designated by the COTP as a substantial harm facility, shall prepare and submit to the cognizant COTP a response plan that meets the requirements of § 154.1030, § 154.1040, § 154.1045, or § 154.1047, as appropriate. This applies to:
(b) The owner or operator of an MTR facility identified in § 154.1015(c) or designated by the COTP as a significant and substantial harm facility shall prepare and submit for review and approval of the cognizant COTP a response plan that meets the requirements of § 154.1030, § 154.1035, § 154.1045, or § 154.1047, as appropriate. This applies to: