4. For works referred to in subparagraph 1 of the first paragraph of section 3, an engineer may not prepare or modify plans, estimates, reports, calculations, studies, designs or specifications without the collaboration of an architect, unless the activity is related to an existing building and does not alter its form.
R. S. 1964, c. 262, s. 4; 2020, c. 152020, c. 15, s. 481.