The inventory of hazardous chemicals includes all of the chemicals you work with.  However, it does not include consumer products that are used in the workplace in the same way you would use them at home.  For example, the cleaners and detergents you may find under the sinks in your break room would not have to be in the inventory because your exposure to these chemicals would not likely be any different than what you would get washing dishes or cleaning at home.  However using a spray adhesive as part of your job in the Graphics Department or spray paint in the field would likely result in exposure more often and for a longer period of time than what you would receive occasionally working with the product at home.  You are using this chemical specifically for your job.  It  falls under the HAZCOM standard and needs to be on the inventory.  Tobacco, alcohol, drugs, and manufactured articles are not covered by HAZCOM.
	To keep the inventory up-to-date, you need to inform your Environmental Health and Safety Coordinator (EHSC) for your office of any new chemicals you have purchased for office use.  For field projects, inform the site Health and Safety Officer (HSO).  If you can get an MSDSs at the time of purchase it would save the  having to call the vendor or manufacturer for one.  Finally, if contractors bring chemicals into the office or onto a site, they should provide the EHSC or HSO with a copy of that MSDS.  That way if we have any strange odors from the contractor’s chemicals, we will know what we are dealing with.