Both documents are issued by the Department of Labor and Employment (DOLE). In addition to this, when applying for a foreigner's permit you must also apply for an ACR - I card with a microchip. It contains all the relevant information an immigration officer needs. Obtain a work permit for a minimum of 1 year and a maximum of 5 years. Where, like in Canada, you need both work visa and work permit, but the duration is short, the minimum is 1 year and the maximum is 3