This report is a spectrum resource assessment of the HF band (3-30 MHz). It incudes information on rules, regulations, allocations, technical standards, frequency assignments, system characteristics, and special uses unique to the HF band. The impact on HF services brought about by new technologies is discussed along with potential impacts of HF Over-the-Horizon (OTH) radars and ionospheric sounders. The importance of domestic emergency communciations in the HF band is discussed along with new standards for interoperability presently being drafted.