Inventories of hazardous substances have always been one of those things that you should have, and it would be hard to manage what you have if you don’t. Part 3 of the draft regulations now makes explicit that the PCBU must have and maintain an inventory.
The inventory must include for all hazardous substances† and hazardous wastes‡ the
The regulation also states that the inventory needs to include the safety data sheet – so a mindset shift away from the inventory being a single document and being more of a set (physical or electronic) is needed. This needs to be available to emergency services – including when the site has been evacuated.
† - excluding those consumer like products used in a way consistent with household use
‡ - see separate discussion about the inclusion of hazardous wastes