HFD
HFD can indicate the Hayward Fire Department, a funding company, a high‑frequency detection method, or commercial brands such as a feather‑duster line and the retailer Halfords.
Medical
Miscellaneous
Governmental
Hayward Fire Department
Headquarters, FDA Drug; mail code for Center for Drug Evalua
Houston Fire Department
Honolulu Fire Department
Hammondsport Fire Department