4. Despite section 3, where the diploma in respect of which an application for equivalence has been filed was issued 5 years or more before the application and the knowledge to which the diploma attests no longer corresponds, having regard to the developments in the profession, to the knowledge being taught at the time of the application in a program of study leading to a diploma giving access to the permit, the candidate is granted a training equivalence pursuant to section 5 if the candidate has attained the required level of knowledge and skills since being awarded the diploma.