I-9, r. 6 - Code of ethics of engineers

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5.02.02. When an associate engineer withdraws from a partnership to practise alone, to join another partnership or another business or to hold a position that is incompatible with the practice of the profession, his name must be eliminated from the name within 30 days of his withdrawal, unless there is a written agreement to the contrary.
In all cases, the agreement may not stipulate a period of more than one year.
O.C. 920-2002, s. 2.