WHO IMD-PQS prequalifies a wide range of immunization devices and equipment of the following categories.

Each category-specific page provides: 

• category information: the performance specifications and verification protocols relevant to that category
• guidelines for manufacturers: the IMD-PQS prequalification guidelines, explaining how, and the requirements a manufacturer must meet, in order to obtain prequalification of a product in that category
• supporting information for users: product manuals and guidance on the procurement, operation and/or maintenance pertaining to the products included in that category.

	E001: Cold rooms, freezer rooms, and related equipment
	E002: Refrigerated vehicles
	E003: Refrigerators and freezers
	E004: Cold boxes and vaccine carriers
	E005: Coolant-packs and vaccine carriers
	E006: Cold chain accessories
	E007: Cold chain accessories
	E008: Injection devices for immunization
	E010: Waste management equipment
	E013: Injection devices for therapeutic purposes

Note: Categories E009, E011 and E012 are currently not in use.