(a) When required by Division rule, an incentive payment shall be added to the maximum allowable reimbursement (MAR) for services performed in a designated workers' compensation underserved area.(b) The following list of ZIP Codes comprise the Division designated workers' compensation underserved areas: 75134, 75135, 75161, 75181, 75212, 75410, 75558, 75603, 75630, 75650, 75653, 75654, 75658, 75660, 75663, 75666, 75667, 75672, 75687, 75692, 75704, 75750, 75752, 75763, 75789, 75849, 75915, 75933, 75949, 75964, 75969, 75973, 75980, 76023, 76055, 76060, 76066, 76088, 76119, 76226, 76239, 76247, 76271, 76380, 76443, 76534, 76621, 76640, 76657, 76682, 76711, 76932, 76935, 77033, 77050, 77053, 77078, 77336, 77354, 77363, 77389, 77396, 77466, 77496, 77517, 77561, 77632, 77808, 77905, 77968, 78025, 78123, 78132, 78140, 78141, 78210, 78220, 78239, 78242, 78333, 78335, 78343, 78368, 78370, 78383, 78407, 78535, 78574, 78583, 78590, 78605, 78640, 78669, 78802, 78830, 78836, 78877, 78884, 78935, 78960, 79010, 79107, 79108, 79114, 79118, 79311, 79367, 79408, 79411, 79511, 79521, 79536, 79561, 79563, 79778, 79782, 79836, 79838, 79849, 79901, 79922, 79934.