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.
Good examples of local winds are sea breezes and land breezes, and mountain and valley breezes. Local winds cover very short distances. Global Winds Global winds are really large air masses that are created mainly as a result of the earthâs rotation, the shape of the earth and the sunâs heating power.