Hi..
The best source for your current answer is page# 4 of EG7000 Guide.
OR
http://www.cic.gc.ca/english/information/applications/guides/EG72.asp
OR
"Choose the Category in the table below which corresponds to your situation. This chart describes the three categories available to you.
Category If you meet the criteria in one of the categories below, your application will be placed into processing.
FSW1
you have at least one year of continuous full time or equivalent paid work experience in the last ten years in one or more of the occupational categories identified in the Ministerial Instructions.
Note: The list of occupations can be found on our website at: www.cic.gc.ca/english/immigrate/skilled/apply-who-instructions.asp
FSW2
you have an offer of arranged employment in Canada. The employment offer should be:
in writing,
indeterminate in duration, and
meet the arranged employment factor described in this guide.
FSW3
you are a temporary foreign worker or an international student residing legally in Canada for at least 12 months immediately before submitting your application.
Note: If you are subject to an enforceable removal order you are not considered to be legally residing in Canada and would therefore not meet the eligibility criteria for this category."
MH