Disability retirement pay you receive as a pension, annuity or similar allowance for an injury or sickness that resulted from active service is not included in your taxable income. The same treatment covers VA disability compensation and pension payments to veterans and their families, grants for a home designed for wheelchair living, grants for a motor vehicle if you lost your sight or the use of a limb, and benefits under a dependent-care assistance program.
There is nothing to apply for. These payments stay out of your federal adjusted gross income, which is where your Utah return starts, so leave them out of the income you report.
Your VA award letter showing the payments and what they are for.