TIA-4950 Complete Document History
Requirements for Battery-Powered, Portable Land Mobile Radio Applications in Class I, Ii, and Iii, Division 1, Hazardous (Classified) Locations

Complete Current Edition:
   REVISION B - Applications in Class I, II, III, Division I, Hazardous (Classified) Locations - Feb. 21, 2020

Obsolete Revision Information:
   REVISION A - Requirements for Battery-Powered, Portable Land Mobile Radio Applications in Class I, Ii, and Iii, Division 1, Hazardous (Classified) Locations - May 13, 2014
   2013 EDITION - II, AND III, DIVISION 1, HAZARDOUS (CLASSIFIED) LOCATIONS - April 3, 2013
   2012 EDITION - BATTERY-POWERED, PORTABLE LAND MOBILE RADIO APPLICATIONS IN - July 1, 2012