Car seat laws vary more than most parents expect, and Tennessee is no exception. Below are the current Tennessee requirements for rear-facing seats, forward-facing seats, boosters, and seat belts, verified against the official Tennessee Highway Safety Office.
Law data last verified against official state sources: October 4, 2026.
Quick answer
Tennessee requires rear-facing under 1 (or 20 lbs or less), forward-facing for ages 1–3 over 20 lbs, a booster for ages 4–8 under 4’9″, belts at 9+, and rear-seat placement under 9 when available. Fine: $50.
Tennessee car seat requirements by age and size
| Stage | What Tennessee law requires |
|---|---|
| Rear-facing | Children under 1 year of age, or any child weighing 20 lbs or less — rear-facing, in the rear seat if available. |
| Forward-facing | Children ages 1–3 weighing more than 20 lbs — forward-facing, in the rear seat if available. |
| Booster seat | Children ages 4–8 measuring less than 4′ 9″ — belt-positioning booster, in the rear seat if available (any child under 4′ 9″ must use a seat belt system at minimum). |
| Seat belt only | Age 9 — children 9–12 (or any child 4′ 9″+) must use a seat belt; recommended in the rear seat if available. |
Fines and penalties in Tennessee
Fine: $50 (driver responsible for children under 16; parent/guardian responsible if present but not driving).
Front seat rules in Tennessee
Front-seat rule: Restraints must be in the rear seat “if available” for children under 9; Tennessee Highway Safety Office recommends the back seat for children 12 and under.
The official law
- Statute: Tenn. Code Ann. § 55-9-602
- Official source: Tennessee Highway Safety Office
Research note: Current threshold confirmed against the Tennessee Highway Safety Office page (supersedes the older 2003 text).
Tennessee car seat law FAQs
What is the fine for a car seat violation in Tennessee?
Fine: $50 (driver responsible for children under 16; parent/guardian responsible if present but not driving).
When can my child stop using a booster seat in Tennessee?
Children ages 4–8 measuring less than 4′ 9″ — belt-positioning booster, in the rear seat if available (any child under 4′ 9″ must use a seat belt system at minimum). Age 9 — children 9–12 (or any child 4′ 9″+) must use a seat belt; recommended in the rear seat if available.
Does Tennessee law require rear-facing car seats?
Children under 1 year of age, or any child weighing 20 lbs or less — rear-facing, in the rear seat if available.
Can my child ride in the front seat in Tennessee?
Front-seat rule: Restraints must be in the rear seat “if available” for children under 9; Tennessee Highway Safety Office recommends the back seat for children 12 and under.
Where can I read the official Tennessee car seat law?
Statute: Tenn. Code Ann. § 55-9-602 Official source: Tennessee Highway Safety Office.
Check another state
Driving across state lines? Requirements change at the border — use our interactive car seat law checker to look up any state by your child’s age, weight, and height.
Related state guides:
This page is for general informational purposes only and is not legal advice. Child passenger safety laws change — always verify current requirements with your state’s DMV, highway safety office, or the official statute linked below before making decisions.