| Check-ups required by law | Time margin | |
|---|---|---|
| U1 | Immediately following birth | None |
| U2 | 3rd to 10th day | 3rd to 14th day |
| U3 | 4th to 5th week | 3rd to 8th week |
| U4 | 3rd to 4th month | 2nd to 4.5th month |
| U5 | 6th to 7th month | 5th to 8th month |
| U6 | 10th to 12th month | 9th to 14th month |
| U7 | 21st to 24th month (around age of 2) | 20th to 27th month |
| U7a | 34th to 36th month (around age of 3) | 33rd to 38th month |
| U8 | 46th to 48th month (around age of 4) | 43rd to 50th month |
| U9 | 60th to 64th month (around age of 5) | 58th to 66th month |
| J1 | At age 13 | 13th to 15th birthday |
| TK's additional early screenings | ||
| U10 | Age 7 to 8 | None |
| U11 | Age 9 to 10 | None |
| J2 | Age 16 to 17 | None |