Your first step would be to have your husband get an evaluation by Vocational Education Services for Individuals with Disabilities (VESID). This is a state agency within the education department. For a finding of TID, you must have an evaluation by VESID which will look at education, physical limitations, past work history, etc. If VESID finds that your husband is retrainable, then it will counsel him on obtaining the retraining, and will pay for it. If VESID finds that he is not retrainable, then they will file a report with WCB stating that he is not retrainable. That is the first step in moving for a total industrial disability. In addition, if your husband has a recorded history of attempting to find employment, and not being able to do so, this will help the claim for TID. He should keep track of the reasons given for not employing him.
It is not enough for your husband to state there is no job available for him due to his restrictions. He has to show, but trying to get a job, that there is no employment available for him.