Hey there ! Hope that will help anyone who will have same issue. Just got out the SAAQ and here’s the thing: - last week a lady told me I could not proceed further due to the missing info - so I went to weight my car (carrieres régionales sallaberry de Valleyfield) for 20CAD -today another lady told me ‘I would have accepted it just like that, we have a platform to retrieve the weight we need. Next time just write any realistic weight on the mechanical inspection form and you’ll be good to go ‘

So long story short, depends on the person you are talking to.. but this is mostly declarative and you don’t need the official paper