21. The prohibition set forth in section 128.6 to carry on, in a wildlife habitat, an activity that may alter any biological, physical or chemical component peculiar to the habitat of the animal or fish concerned does not apply to a person who, in a habitat mentioned in sections 22 to 24, carries on one of the activities involved in the installation of aboveground or underground telecommunications lines or electric power distribution lines or in the maintenance of the right of way for such lines mentioned in sections 22 to 24, where the person carries on the activity in accordance with the requirements of those sections.