IAFF

Description
International Association of Firefighters (Union)

IAFC

Description
International Association of Fire Chiefs

IACP

Description
International Association of Chiefs of Police

HUD

Description
Housing and Urban Development (federal)

HSUS

Description
Humane Society of the United States

HR

Description
Human Resources

HOV

Description
High-Occupancy Vehicle

HMO

Description
Health Maintenance Organization

HIV

Description
Human Immunodeficiency Virus

HHW

Description
Household Hazardous Waste
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