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Washington driving lesson · Vehicle Equipment

Seat belts, child seats, and airbags

A 3-minute lesson from the Washington course. Read the rules and examples, follow the handbook page references, and check your understanding before you move on.

Read time
3 minutes
Course unit
Vehicle Equipment
Checkpoint questions
6
Source pages
52, 53, 54, 184

Buckling up correctly is the most effective thing you can do to protect yourself in a crash. Washington requires everyone in a moving vehicle to be belted or in the right child seat, and it sets clear stages by age and height.

Know the rule

Every person in a moving vehicle must wear a seat belt or be secured in an approved child restraint (RCW 46.61.687 and 46.61.688).

Handbook p. 52 ↗

Wear your belt correctly:

  • Across the middle of your chest, never behind your back or under your arm
  • Shoulder belt snug across shoulder and chest, not crossing your neck or face
  • Lap belt snug across the hips, below the stomach
  • Not twisted
Handbook p. 52 ↗
Proper seat belt fit
Proper seat belt fit

Know the rule

For a good fit, the lap belt rests on your upper thigh and the cross-body strap falls across your mid-shoulder; your knees bend at the seat edge and feet touch the floor.

Handbook p. 53 ↗

Child restraint stages

Child restraint stages
StageAge or sizeRule
Rear-facingBirth to 2 yearsChildren up to age 2 ride rear-facing
Harness seat2 to 4 yearsCar seat with a rear- or forward-facing harness
Booster4 years old to 4'9"Car or booster seat until the adult belt fits
Seat beltOver 4'9"A properly fitting lap and shoulder belt
Handbook p. 53 ↗

Know the rule

Children 4 and older stay in a car or booster seat until the lap and shoulder belts fit properly, typically between ages 8 and 12.

Handbook p. 54 ↗

Booster seat

A seat for children who have outgrown their car seats but are still too small to properly fit a regular seat belt.

Handbook p. 184 ↗

Know the rule

Child restraints must meet Federal Motor Vehicle Safety Standards and be installed per the vehicle and seat manufacturers' instructions. A certified child passenger safety technician can check it.

Handbook p. 53 ↗

Know the rule

Keep a child in each stage as long as the seat allows, for the best protection.

Handbook p. 53 ↗
Child booster seat with seat belt
Child in a high-back booster seat

Know the rule

Airbags and seat belts work together. If you're not belted when an airbag deploys, you risk serious injury or death.

Handbook p. 54 ↗

Know the rule

Children under 13 should never ride in the front seat; they could be seriously injured or killed if an airbag deploys.

Handbook p. 54 ↗

Put it into practice

You're driving your 6-year-old nephew, who is 4'2". He's under 4'9", so he rides in a car or booster seat, and at under 13 he belongs in the back seat.

Check your understanding

Read the question, decide on an answer, then open it to check the explanation. These are Roadwise study questions based on the source handbook.

Every person in a moving vehicle must wear a seat belt or be secured in an approved child restraint.
  1. True
  2. False

Answer: True

Every occupant of a moving vehicle must be belted or properly restrained.

Handbook p. 52 ↗
Until what age must a child ride in a rear-facing car seat in Washington?
  1. Age 8
  2. Age 2
  3. Age 4
  4. Age 1

Answer: Age 2

Children up to age 2 must ride in a rear-facing car seat.

Handbook p. 53 ↗
A child is 5 years old and 3'9" tall. Which restraint type is required?
  1. A car or booster seat
  2. A rear-facing car seat
  3. A regular seat belt alone
  4. A lap belt only

Answer: A car or booster seat

Children age 4 and older must use a car or booster seat until they're tall enough for a lap and shoulder belt to fit properly, typically ages 8-12.

Handbook p. 54 ↗
At about what height can a child typically move from a booster seat to a regular seat belt?
  1. 3'6"
  2. 5'2"
  3. 4'0"
  4. 4'9"

Answer: 4'9"

Children generally stay in a booster until the lap and shoulder belts fit properly, around 4'9" tall.

Handbook p. 54 ↗
Why should children under 13 never ride in the front seat?
  1. Front seat belts aren't rated for children
  2. Front seats lack child seat anchors
  3. They could be seriously injured or killed if the airbag deploys
  4. Children distract the driver from the front

Answer: They could be seriously injured or killed if the airbag deploys

Airbags can seriously injure or kill children under 13, which is why they shouldn't ride in front.

Handbook p. 54 ↗
Where should the lap belt portion of a seat belt rest?
  1. Across the lower ribs
  2. Snugly across the hips, below the stomach
  3. Across the stomach for comfort
  4. Loosely across the thighs

Answer: Snugly across the hips, below the stomach

The lap belt should securely and snugly restrain the hips, below the stomach.

Handbook p. 52 ↗
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