Significant portions of our employee population also receive regular compliance training on the federal and state codes of http://aep.com/investors/corporateleadersandgovernance/docs/PrinciplesOfBusinessConduct_Booklet.pdf http://aep.com/investors/corporateleadersandgovernance/docs/PrinciplesOfBusinessConduct_Booklet.pdf AEP classifies all of its bulk electric system facilities based on the critical nature of the equipment to determine the level of security needed.