Timing of the test For all oxygen groups (i.e., Group I, II and III), initial testing must be done within the 30 days before the initial date of service. For Group II beneficiaries, recertification testing must be done between day 61 â 90 after the initial date of service.
Trolling motors are popular with anglers who want to be able to maneuver around a fishing area without disturbing the fish below the surface. When youâre searching for a new electric boat motor, keep these points in mind: 1  Most trolling motors operate on 12 volt, 24 volt and 36 volt circuits.
Buy a Larger Motor: Larger 24v and 36v multi-battery trolling motors are able to provide the same thrust as smaller motors with less amperage draw, which results in longer run times. If you need seriously long run time for your smaller boat, it may make sense to buy a 24v or 36v motor.