Regarding fall harnesses: The are considered PPE, key being Personal. You can make a very strong case that, once they have been work by one person - like a dirty, smelly, sweaty electrician, they can not be reissued to another employee without going through an approved cleaning/disinfecting process. If they are dirty or worn, obtain the manufacturers proceedures for inspecting and cleaning. If they are not being followed, rat the company off the OSHA or the local equivalent. Most regulatory people are really big on documentation (we all know they aren't much in the real world but they can follow a paper trail very well).