Taking into account canaling projects, which is the correct answer? Select the correct answer They do not require any environmental evaluation as they operate in a very narrow strip of public ownership. They require specific cartographic work at reduced scales, at least in the most unique areas such as structures. You should always opt for a defense solution since it is the most respectful of the environment. The DPH demarcation does not play a very important role since the pipelines are normally within the police zone so they are not affected