| Answer | Crossword Clue |
|---|---|
| OIL | It may be checked at a station |
| IDTAG | It may be checked at a checkpoint |
| COAT | It may be checked at a museum |
| IDCARD | It may be checked at the door |
| IDCARD | It may be checked at the liquor store |
| AIR | It may be free at the gas station |
