| 2009 |
- NENA annual conference, Fort Worth (Tex.), June 6-11
- APCO annual conference, August, Las Vegas, August 9-14
- International CAD Consortium annual conference, Fairfax County (VA), May 3-7
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| 2010 |
- NENA annual conference, Indianapolis (Ind.), June 5-10
- APCO Annual Conference, Houston, August 1-5
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| 2011 |
- APCO Annual Conference, Philadelphia Convention Center, August 7-12
- January 1st - FCC Spectrum Refarming: FCC applications prohibited for new systems operating on 25 MHz frequency spacing; manufacture or import prohibited of any 150-175/421-512 MHz systems capable of operating on only one voice path per 25 MHz of spectrum; prohibit certification of any 25 MHz mode equipment.
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2012 |
- APCO Annual Conference, Minneapolis, August 6-10
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| 2013 |
- January 1st - FCC Spectrum Refarming: land mobile radios below 512 MHz are required to operate within 12.5 KHz channels.
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