Dear Border Crossing:
We are assuming that you are referring to Prince Edward Island (PEI) in Canada. We can offer you the Canadian rules on temporary entry to Canada for employment. Under the NAFTA (North American Free Trade Agreement), a US citizen can easily obtain a work permit - officially called Employment Authorization (EA) - for temporary employment in Canada. Here are the details:
        If you are an American or Mexican citizen and you are seeking to enter 
        Canada on a temporary basis to engage in the trade of goods, provision 
        of services, or in investment activities, there is a good possibility that 
        you will qualify for eased entry under the NAFTA. 
        
           
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Note: "American 
        citizen" includes residents of the District of Columbia and the Commonwealth 
        of Puerto Rico but does not include residents of Guam, the Commonwealth 
        of the Northern Mariana Islands, American Samoa, and the United States 
        Virgin Islands.
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General 
        requirements 
      
There are four general 
        requirements you must meet in order to be granted temporary entry to Canada 
        under the NAFTA: 
1. You must be an American or Mexican citizen.
        
           
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 Note: A valid 
                passport is the best proof of citizenship. In the absence of a 
                passport, which American citizens do not require in order to travel 
                to Canada, proof can be provided in the form of a certificate 
                of citizenship or a birth certificate. Becasue the birth certificate 
                is not a secure document, be prepared to show some additional 
                identification which bears a photograph, such as a driver's licence.
                  
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      You do not 
        qualify for eased access under the NAFTA if 
      
        -  You are a permanent 
          resident of the United States or Mexico, but a citizen of a non-NAFTA 
          country; or  
        
 -  You are working 
          in the United States or Mexico on an employment authorization, but are 
          a citizen of a non-NAFTA country.  
      
 
       You may, however, 
        continue to have access to Canada through the normal procedures for the 
        entry of temporary foreign workers.  
      
2. You must qualify in one of the four categories of business persons 
        defined in the NAFTA: business visitors, professionals, intra-company 
        transferees, or traders and investors .
      
 3. You must be seeking temporary entry only.
       Temporary entry 
        means that you have no intention of remaining in Canada permanently. Your 
        status in Canada will be that of "visitor". If you wish to remain permanently, 
        you must go through the normal immigration procedures for permanent residence 
        and apply from outside of Canada.
 
4. You must meet the universal immigration requirements governing temporary 
        entry to Canada.
       Remember that even 
        if you are covered under the NAFTA, you may be affected by other provisions 
        of Canada's Immigration Act and Regulations. The existence of certain 
        medical conditions or a criminal record, for example, may mean that entry 
        cannot be granted.
      
 Depending on the 
        type of job you will have and where you have lived during the past year, 
        you may be required to have a medical examination. If you want to work 
        in the field of health services, you will need a medical examination and 
        a satisfactory medical assessment before you can be issued an employment 
        authorization.  
      
 If any of these 
        circumstances applies to you (or your accompanying family members), it 
        would be wise to seek advice from a Canadian embassy or consulate before 
        travelling to Canada. 
      
 Remember that the 
        NAFTA does not replace the general provisions for temporary entry to Canada, 
        but merely adds to them. When you are seeking entry to Canada, a Canadian 
        immigration officer will decide whether it is more advantageous to you, 
        as the client, to be admitted under the general provisions for temporary 
        foreign workers or under the NAFTA. In either case, all other provisions 
        of Canadian immigration law remain in effect with respect to travel and 
        identity documentation and the protection of public health, safety, and 
        national security.