This visa category is issued to work permit holders who have obtained a prior approval (WP) from the Immigration dept of the respective countries. WP is not an approval to travel to the foreign land, It‘s an approval to legally work. Every WP holder has to apply for the work visa for the travel, a WV is a permission issued by the foreign mission in the applicants home country or in the country of residence authorizing the person to travel to the foreign land on work.