Of course a cola is required to make sure that their disability payments keep Pace with inflation. This is also true of recipients of Social Security. I do believe that the procedure to determine the cola needs to be reviewed and changed. I have not had a an actual dollar increase in my social security benefits since 2014. In the meantime my rent goes up every year which results in less spending power for me every year. I feel sincerely that the manner in which colas are calculated needs to be re-evaluated and adjusted to actually keep pace with inflation.