When trying to introduce/tighten an environmental policy, the regulatory authorities usually conduct interviews to relevant business operators to grasp the technological possibility to attain the level required by the environmental policy. If most of relevant business operators answer that the required level is impossible, it is extremely difficult to introduce/tighten the environmental policy. However, the regulatory authorities cannot usually understand the details of the operators’ technical conditions from the outside of the operators. Therefore, the operators could manipulate the decision of the regulatory authorities by providing incorrect information for the authorities. With regard to nuclear safety regulation in Japan, the necessary independence and transparency in the relationship between the operators and the regulatory authorities were lost, and the authorities were locked in a situation described as “regulatory capture”. In order to prevent this situation and promote operators to manage relevant technologies properly, thorough information disclosure in the negotiation process is prerequisite. In addition, especially for areas which are emphasized as the national policy, it is important to diversify technology evaluation and local governments are expected to play the role.