If you become “permanently incapacitated”—mentally or physically—from performing your job, you may be eligible for a disability retirement. Permanent incapacity means the substantial inability to perform the usual duties of your job. Following an in-depth investigation, if you are found to be permanently incapacitated, you may be eligible to receive a service-connected or nonservice-connected disability retirement. If the Board of Retirement approves your application, you will receive a lifetime retirement benefit.