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annually
All workplaces will be inspected at least annually using Standard Army Safety and Occupational Health Inspection procedures. Facilities and operations involving special hazards will be inspected more frequently as determined by qualified SOH personnel. Qualified safety and occupational health professionals or specially trained personnel competent to conduct the inspection, using the procedures outlined in DA Pam 385-10, will conduct workplace safety inspections at least annually.
All workplaces will be inspected at least annually using Standard Army Safety and Occupational Health Inspection procedures. Facilities and operations involving special hazards will be inspected more frequently as determined by qualified SOH personnel.
Annual and 100-hour inspections.
They could be if requested. Spas are not required in home inspections but some inspectors have spa and pool inspections listed as additional services for an additional price.
Car safety inspections are required annually in Texas. This is part of the registration renewal process and in some vehicles will also need emissions testing.
Annually in most commercial buildings
The International Standard Classification of Occupations (ISCO) is considered one of the most detailed and complex occupational classification systems globally. It provides a comprehensive framework for categorizing and grouping occupations based on the nature of work and skills required.
Except in combat situations, soldiers and their employer, the Army, is required to comply with the Occupational Safety and Health Act.
at least once a month
Most states are discontinuing the safety inspections anyway,but to answer your question 20 to 25 years depending on the state you live in.
The OSHA General Industry Confined space standard (29 CFR 1910.146) pertains strictly to confined spaces.