The professional needs to be registered in Alberta, Manitoba, and Saskatchewan. As a licensed professional mechanical engineer, it is essential to comply with the regulations of each province where the professional practices. Since the company is based in Alberta, designs are for a project located in Manitoba, and the principal modular components are constructed in Saskatchewan where the professional also oversees on-site work, registration in all three provinces is required. This ensures that the professional adheres to the local laws and regulations governing engineering practice in each province, safeguarding both the public and the integrity of the profession.