Most facilities will have a piece of equipment that is so large and complex that it will entail isolating many sources of all types of energy in order to get the entire system to a zero energy state (ZES). But what do we do when we have a task that involves exposure to only one (1) energy source? Do we expect the worker(s) to lock out all the isolation devices, or can they merely lock out those devices that will protect them during their specific task? The answer is easy, but the implementation of the practice is a lot of work – work that many businesses do not want to invest in. Here is how it looks and functions…