I think the Australian Rules seem the most appropriate regarding the usage of Position Lights during night and conditions of poor visibility. As far Engineering is concerned, they can also put it on as required basis. Because soon enough someone from stores/ Acounts will come up with the data that by switching off the position lights during day they saved some thousands of Dollars on costs in a year........something akin to United or was it Delta saved $ 40,000 in a year by cutting out on Olives on their drinks !!!!
