state_select.html

<select class="form-control" name="state" ng-model="vm.state">
  <option ng-value="null" disabled>&#8212;Select a state&#8212;</option>
  <option ng-value="'AC'">Acre</option>
  <option ng-value="'AC'">Acre</option>
  <option ng-value="'AL'">Alagoas</option>
  <option ng-value="'AP'">Amapá</option>
  <option ng-value="'AM'">Amazonas</option>
  <option ng-value="'BA'">Bahia</option>
  <option ng-value="'CE'">Ceará</option>
  <option ng-value="'DF'">Distrito Federal</option>
  <option ng-value="'ES'">Espírito Santo</option>
  <option ng-value="'GO'">Goiás</option>
  <option ng-value="'MA'">Maranhão</option>
  <option ng-value="'MT'">Mato Grosso</option>
  <option ng-value="'MS'">Mato Grosso do Sul</option>
  <option ng-value="'MG'">Minas Gerais</option>
  <option ng-value="'PA'">Pará</option>
  <option ng-value="'PB'">Paraíba</option>
  <option ng-value="'PR'">Paraná</option>
  <option ng-value="'PE'">Pernambuco</option>
  <option ng-value="'PI'">Piauí</option>
  <option ng-value="'RJ'">Rio de Janeiro</option>
  <option ng-value="'RN'">Rio Grande do Norte</option>
  <option ng-value="'RS'">Rio Grande do Sul</option>
  <option ng-value="'RO'">Rondônia</option>
  <option ng-value="'RR'">Roraima</option>
  <option ng-value="'SC'">Santa Catarina</option>
  <option ng-value="'SP'">São Paulo</option>
  <option ng-value="'SE'">Sergipe</option>
  <option ng-value="'TO'">Tocantins</option>
</select>