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.
Types of winds. Local Winds. Local winds are those that are created as a result of scenery such as mountains, vegetation, water bodies and so on. They usually change very often and the weather forecast people talk about this kind on the TV every day. They can move from mild to extreme winds in just hours.