Circular polarization (CP), Linear Polarization (LP) and Multi-Channel-N (MC-N) are RF transmit technologies at 3T. The B1+ peak limit is dependent on the RF coil amplifier topology and the transmit scheme. This may lead to significant changes in the induced E field in a patient and affect the MR safety assessment for active implantable medical devices (AIMDs). This abstract shows that even though B1+ peak levels of LP is lower than that of CP or MC-N, the E-field along an implant during LP can exceed CP or MC-N. Therefore, since LP can be achieved within CP or MC-N, it should be considered for AIMD MR safety assessment.