WELDERS AND WELDING

Anhydrous ammonia containers, see Welding and welders under ANHYDROUS AMMONIA

Child labor

Oxyacetylene or oxyhydrogen welding, Minn. Rules 5200.0910

Prohibited employment, Minn. Rules 5200.0920

High pressure pipefitters, examinations, certified welders, Minn. Rules 5230.0090

High pressure piping systems, Minn. Rules 5230.5920

Occupational safety and health, federal standards, Minn. Rules 5205.0010

Oxyacetylene welding process, child labor, Minn. Rules 5200.0910, 5200.0920

Welding rods, iron mining industry, sales and use taxes, exemptions, Minn. Rules 8130.9600