Depending on how old your son’s learning disability evaluation is, he should have the right to request reasonable accommodations to help him succeed in his job. Employers vary regarding how current they ask LD documentation to be, but if it’s was done within the last 5 years, it should be current enough. Some employers will accept older evaluations if the person was an adult when he or she was last tested.
Choosing reasonable and effective job accommodations varies depending on the individual’s areas of strengths and needs. For example, if your son has strong visual skills, it might help him to have written directions and/or flow charts for multi-step processes. If, however, he does better with listening than reading, it might be more appropriate to have an auditory recording of the steps that he can listen to as he works.
Yes, you definitely need a written release of confidential information signed by your son before you can discuss any disability-related information with his employer. A better approach, of course, is for your son to self-advocate for his needs himself, or at least be with you when you meet with the employer. There is more information about self-advocacy in the workplace at https://ldaamerica.org/self-advocacy-in-the-workplace-requesting-job-accommodations/
It’s important to choose a career or job where you can use your strengths more than your areas of challenges. The ADAAA protects people with disabilities in the workplace, however, so with the right job accommodations in place, you should be able to find a good match with your strengths and interests.
Students with a Certificate of Completion should be eligible for many of the same employment opportunities as student with high school diplomas, but a good job fit would be something where the student could use his areas of strengths as much as possible. It’s also important to determine appropriate job accommodations and strategies for the more challenging areas.