BSGBoosterSeatGuide

State law page

New Jersey Booster Seat Laws & Requirements (2026)

Under 2 yrs and under 30 lbs in rear-facing seat | Under 4 yrs and under 40 lbs until height or weight limit reached in child safety seat | Under 8 yrs and shorter than 57" in forward-facing child safety seat or booster seat until height or weight limit reached in rear seat, if available

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FieldNew Jersey snapshot
Age requirementUnder 2 yrs and under 30 lbs in rear-facing seat | Under 4 yrs and under 40 lbs until height or weight limit reached in child safety seat | Under 8 yrs and shorter than 57" in forward-facing child safety seat or booster seat until height or weight limit reached in rear seat, if available
Height requirementSee child-restraint rule; includes height language where listed.
Weight requirementSee child-restraint rule; includes weight language where listed.
Fine / penaltyVerify fine with state source; GHSA notes first-offense fines vary by state.
Last checkedGHSA reviewed by SHSOs June 2025; extracted 2026-07-23
Verification levelIndex source; official state verification pending
Child restraint requiredUnder 2 yrs and under 30 lbs in rear-facing seat | Under 4 yrs and under 40 lbs until height or weight limit reached in child safety seat | Under 8 yrs and shorter than 57" in forward-facing child safety seat or booster seat until height or weight limit reached in rear seat, if available
Adult safety belt permissible8 yrs or older or over 57"
Verification levelIndex source; official state verification pending

Sources

Law and source links

Index source: https://www.ghsa.org/state-laws-issues/child-passengers

Statute/source text: GHSA child passenger law summary; Safe Kids state law tracker cross-check

Safety guidance

Even when New Jersey law allows a seat belt, NHTSA, CDC, and AAP guidance may still recommend a booster until the vehicle belt fits properly.

Requirements guide

Understand age, height, weight, and seat belt fit.

Read requirements

Age guide

See when children typically start and stop using boosters.

Read age guide