In agricultural operations, when are general industry regulations followed versus agricultural regulations?

OSHA provides some specific regulations regarding agricultural operations in 29 CFR Part 1928  including:

• Rollover protective structures for agricultural equipment;
• Test procedures and performance requirements for protective frames and enclosures, as well as for agricultural tractors;
• Information on guarding of farm field equipment, farmstead equipment, cotton gins, etc.;
• Field sanitation; and
• Cadmium.

Part 1928 covers "agricultural operations," which include, but are not limited to, egg farms, poultry farms, livestock grain and feed lot operations, dairy farms, horse farms, hog farms, fish farms, and fur-bearing animal farms.