Are safety guarding fences required by law?

Yes, safety guarding fences are often required by law to comply with workplace safety regulations, such as:

OSHA Standards (U.S.):

Mandates machine guarding (29 CFR 1910.212) to protect employees from hazards.

ISO/ANSI Standards:

International and national guidelines require safety barriers for machinery and hazardous areas.
Failure to comply can result in fines, legal penalties, or workplace accidents.