The hazard assessment puts logic into the process.  The MSDS sheets may suggest that to use a chemical gloves, splash gear and apron must be worn.  The hazard assessment reviews the process in which it is used to determine if the hazard exists.  For example, window cleaner MSDS may suggest chemical gloves, splash gear and apron be worn, but after careful evaluation of the work area and process, as long as it is sprayed on a window and not reversed towards the eye, the hazard assessment may only require protective gloves. 

Each process that uses a chemical must go through the hazard assessment process.

PPE regulations also require that a written plan be developed and implemented.  Training on the proper types of PPE as well as the proper wearing and removing of the equipment is required.