Labor certification is  a United States of America immigration process step. Its stated goal is to protect U.S. workers and the U.S. labor market by ensuring that foreign workers seeking immigrant visa classifications are not displacing equally qualified U.S. workers..
How are local winds and global winds differ? local winds-are winds that blow over short distances caused by unequal heating of the earths surface in a small area. global winds-are winds that blow around the earth from â¦ the north pole to the south pole.
Confidence votes 297. Prevailing winds are also known as wind belts and can simply be described as winds that blow mainly from one direction. While local winds can vary in all directions, large scale weather patterns and wind patterns are part of the global wind belts.onfidence votes 297. Prevailing winds are also known as wind belts and can simply be described as winds that blow mainly from one direction. While local winds can vary in all directions, large scale weather patterns and wind patterns are part of the global wind belts.