Manure storage and handling systems have changed in recent years due in part to larger farms, new technologies, and application restrictions. These manure storage and handling systems have potential hazards to workers and rescuers that include confined spaces. The gases produced by manure as it decomposes require extra precautions when working with manure storage and handling systems.

Nationally, 143 fatalities involved livestock manure storage structures over the years. The most frequent (34%) activity at the time of death was conducting repairs or maintenance activities on manure handl...