This is so called because the bed constructed in this type of foundation is called grillage. This type of construction avoids deep excavation and provides the necessary area at the base of the structure to reduce the intensity of pressure within the safe bearing capacity of the soil.
The U.S. federal government requires a minimum of 75 hours of state-approved training for nursing assistants who work in nursing care facilities, according to the BLS. They also must pass a written competency evaluation, after which, successful candidates are awarded certification and become CNAs.
In many other states the certification is known as Certified Nursing Assistant, or CNA. The first step to get your certification is to attend STNA classes. These STNA classes are required to include at least 59 hours of classroom training and 16 hours of clinical training. Once you have completed your course, you will then be ready to take your test. There are two sections of the Ohio STNA test.