Individuals recognize the hazards associated with excavation work. They know how to use appropriate safety equipment and operating procedures to reduce the risks. They can describe the characteristics and slope requirements for different types of soils. They understand the OSHA standards for the use of shoring, shielding and combined systems for trench reinforcement. They are able to set the trench grade using a string line or laser levels, and they can properly backfill a trench.

• Type Validation
• Time Hours