This manual, FM 3-7, is designed as a guide to help the chemical soldier at battalion level and below in NBC defense. It details the NBC warning and reporting system, and how to locate, identify, and operate in and around NBC contamination. This manual is designed to be an easy-to-read, step-by-step manual depicting the manual method of calculating NBC defense procedures useful for the field soldier. A more detailed discussion of NBC defensive measures may be found in: FM 3-3, Chemical and Biological Contamination Avoidance; FM 3-3-1, Nuclear Contamination Avoidance; FM 3-4, NBC Protection; FM 3-4-1, Fixed Site Protection; FM 3-5, NBC Decontamination; FM 3-11, Flame Field Expedients. Chemical soldiers must be familiar with and be able to apply the information in this manual.
FM 3-7, Field Manual Number 3-7