; (B) risks to human life and safety; and (C) technological and economic feasibility; and (29) the term response action means reasonable measures taken after an environmental emergency has occurred to avoid, minimize or contain the impact of that environmental emergency, which to that end may include clean-up in appropriate circumstances, and includes determining the extent of that emergency and its impact, except that for purposes of this Act, the definition of response contained in section 101(25) of the Comprehensive Environmental Response, Compensation, and Liability Act ( 42 U.S.C. 9601(25) ) shall not apply. ; (2) by inserting after section 4A the following: 4B. Preventative measures (a) Operators shall undertake reasonable preventative measures that are designed to reduce the risk of environmental emergencies and their potential adverse impact. (b) Such preventative measures may include— (1) specialized structures or equipment incorporated into the design and construction of facilities and means of transportation; (2) specialized procedures incorporated into the operation or maintenance of facilities and means of transportation; and (3) specialized training of personnel. 4C. Contingency plans (a) Operators shall— (1) establish contingency plans for responses to incidents with potential adverse impacts on the Antarctic environment or dependent and associated ecosystems; and (2) cooperate in the formulation and implementation of such contingency plans. (b) Such contingency plans shall include, when appropriate, the following components: (1) procedures for conducting an assessment of the nature of the incident; (2) notification procedures; (3) identification and mobilization of resources; (4) response plans; (5) training; (6) recordkeeping; and (7) demobilization. 4D. Response action An operator shall take prompt and effective response action to environmental emergencies arising from the activities of that operator.