Recently, while giving a talk at the Montgomery Amateur Radio Club (MARC) in Rockville, MD, I had the occasion to meet Ross Merlin WA2WDT who gave me a copy of a guide that he authored at the Department of Homeland Security. Ross works in the DHS Office of Emergency Communications and his guide, called NIFOG, is a great go-to compendium of radio frequencies, channels, and other tidbits that can be essential in times of an emergency. This little booklet, available in printed and downloadable formats, contains page after page of frequency information, operating procedures, formulas, and rules and regulations from the FCC, and the NTIA. Subject material includes frequency and channel data for Fire, EMS, Police, and Law Enforcement as well as Mutual Aid channels in VHF, UHF, 700 MHz, and others. Also includes emergency comms for marine, aviation, P25, NOAA weather, MURS, GMRS, FRS, and just about any radio you might encounter in an emergency. Copies printed on waterproof paper, are available free of charge from DHS. Please contact NIFOG@HQ.DHS.GOV for details. The main site where the downloads are available is http://publicsafetytools.info and is well worth a visit. The site contains a number of important emergency services resources for communications and is itself worth a visit. Several online tools provide mapping of critical radio services plus links to a number of important emergency resources.