BSGBoosterSeatGuide

State law page

Delaware Booster Seat Laws & Requirements (2026)

Under 2 yrs and under 30 lbs in rear-facing car seat | Under 4 yrs and under 40 lbs in a harnessed child safety seat | Under 16 in booster seat until reaching the maximum height or weight limit | 5'5" or less and under 12 yrs in rear seat

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FieldDelaware snapshot
Age requirementUnder 2 yrs and under 30 lbs in rear-facing car seat | Under 4 yrs and under 40 lbs in a harnessed child safety seat | Under 16 in booster seat until reaching the maximum height or weight limit | 5'5" or less and under 12 yrs in rear seat
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 car seat | Under 4 yrs and under 40 lbs in a harnessed child safety seat | Under 16 in booster seat until reaching the maximum height or weight limit | 5'5" or less and under 12 yrs in rear seat
Adult safety belt permissible4-16 yrs if exceeds the height or weight limit of booster seat
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 Delaware 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