各國兒童安全座椅規定
多數國家要求兒童在達到一定年齡、身高或體重前使用安全座椅。最大差異在於後向乘坐的時長：瑞典要求約 4 歲，而許多地區僅建議到 15 個月。出行前請核實當地現行法規。
| 國家 | 後向乘坐規定 | 增高墊/身高年齡規定 | 備註 |
|---|---|---|---|
| United States | Rear-facing to at least age 2 (longer if the seat allows) | Booster until the seat belt fits, about age 8–12 or 145 cm | Laws vary by state; the back seat is safest for under 13 |
| United Kingdom | Rear-facing advised to 15 months (i-Size); not legally required | Child seat until 12 years or 135 cm tall | Backless boosters banned for under-3; front-seat use restricted |
| Germany | Rear-facing advised; restraint required under 12 and under 150 cm | Booster / seat until 150 cm or age 12 | Must use UN-approved (ECE) restraints |
| Sweden | Rear-facing until at least age 4 (often to 5–6) | Child seat until 135 cm; booster after rear-facing | Among the strictest rear-facing norms in the world |
| France | Rear-facing advised to 15 months; seat required under 10 | Child restraint until 10 years or 150 cm | Children under 10 barred from front seat if rear seats free |
| Australia | Rear-facing to at least 6 months (12 months advised) | Approved restraint to age 7, then booster if under 145 cm | Type-approved seats only; rules set per state |
| Japan | Infant rear-facing until about 1 year / 10 kg | Child seat required under 6; booster not separately mandated | Law requires restraint for children under 6 |
| South Korea | Infant rear-facing until about 1 year / 9 kg | Child seat required under 6; booster not separately mandated | Fine if an under-6 child is unrestrained |
| China | Infant rear-facing; restraint required under 4 (varies by city) | Booster / seat advised for ages 4–12 | National standard GB 27887; local laws differ |
| Singapore | Infant rear-facing to about 6 months / 10 kg | Restraint required under 1.35 m (roughly age 8–12) | Children under 1.35 m cannot use an adult belt alone |
說明
- 規定常有差異並會變化；本表僅為概覽，非法律建議。
- 後向乘坐對幼兒頭頸更安全——在座椅允許範圍內盡量延長。
常見問題
- 兒童應後向乘坐多久？
- 儘量久——美國至少到 2 歲，瑞典常到約 4 歲。這能保護頭頸。
- 何時可用增高墊代替五點式？
- 在前向五點式座椅坐滿後，通常約 4 歲起，直到車輛安全帶貼合（常到 8–12 歲或 145 公分）。
- 各國規定真的不同嗎？
- 是的，差異很大。身高門檻從 135 公分（英國）到 150 公分（德國、法國），後向預期從 15 個月到 4 歲不等。
- 兒童必須坐後排嗎？
- 多數國家後排最安全且常對幼童法定要求；有些（如法國）若後排空著禁止 10 歲以下坐前排。