# Document Type Code (DOC)

<table><thead><tr><th width="112">Code</th><th width="656">Type</th></tr></thead><tbody><tr><td>1</td><td>Visa</td></tr><tr><td>2</td><td>Passport</td></tr><tr><td>3</td><td>Military identification</td></tr><tr><td>4</td><td>Drivers license</td></tr><tr><td>5</td><td>National identity document</td></tr><tr><td>6</td><td>Vaccination certificate</td></tr><tr><td>7</td><td>Alien registration number</td></tr><tr><td>8</td><td>Insurance policy number</td></tr><tr><td>9</td><td>Tax exemption number</td></tr><tr><td>10</td><td>Vehicle registration/license number</td></tr><tr><td>11</td><td>Border crossing card</td></tr><tr><td>12</td><td>Refugee travel document</td></tr><tr><td>13</td><td>Pilot's license</td></tr><tr><td>14</td><td>Permanent resident card</td></tr><tr><td>15</td><td>Redress number</td></tr><tr><td>16</td><td>Known traveler number</td></tr><tr><td>17</td><td>Non-standard</td></tr><tr><td>18</td><td>Merchant mariner</td></tr><tr><td>19</td><td>Air Nexus card</td></tr><tr><td>20</td><td>Crew member certificate</td></tr><tr><td>21</td><td>Passport card</td></tr><tr><td>22</td><td>Naturalization certificate</td></tr></tbody></table>


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