The education required to become a state trooper varies by state, but in general at least a year of post-high school education is required. In some states, if you have served in the military the post-high school educational requirement is waived because of your experience.
You can enroll in Medicare Part D coverage once you meet both of the above requirements. Your Initial Enrollment Period for Part D is when you're first eligible to sign up for prescription drug benefits, and this period usually coincides with when you're first eligible for Medicare coverage.
In order to enroll in the Pilot program, you must have Medicare Part B. Medicare is allowing a Special Enrollment Period (SEP) to enroll in Part B. This SEP ends May 30, 2015. If you do not enroll in Part B during the SEP, you may enroll during the General Enrollment Period (January through March of each year).