evenflo and graco have adopted a 40 pound limit. but others market theirs for at little at 30 pounds. we were able to buy in booster tuesday that said, 30 pounds and up. >> as a parent, i am begging people to please not put children under 40 pounds in a booster seat. what we have seen from this investigation is terrifying, and heartbreaking. >>> the companies all declined to go on camera, so did the trade association that said in a statement, a correctly used car seat is a child's best defense in a car crash reducing the risk of injury by 45% compared with vehicle seat belts alone. adding the industry supports stringent federal standards t the report is critical of the national highway traffic safety that set the standards. despite being directed by congress 20 years ago, to create a standard for car seats the agency has not done it. they say, the process is highly complex and the standards are coming soon. so, parents what do you do, experts for the kids in the 30 pound range, they are safe staying in a car seat like this, that has

. >> reporter: brown was strapped in her evenflo big kids booster seat.rash left her internally igned and the injuries were due to severity of the crash or driver error, adding the seat meets or exceeds federal standards and passed internal crash tests. the company settled a lawsuit with the brown family this summer. but four years before the crash that left jillian paralyzed, internal emails from 2012 showed evenflo spent $30,000 in additional labeling costs to market boosters to kids 30 pounds and up instead of the 40 pound standard in canada for the same seats. one executive writing i looked at 40 pounds for the u.s. numerous times and will not approve this. house investigators found several makers adopted a 40 pound minimum, evenflo and graco as early as earlier this year. baby trend, kids embrace continue to offer it for kids as little as 30 pounds. we were able to buy a booster tuesday that says 30 pounds and up. >> as a parent, i am begging people, please not put children under 40 pounds in a booster seat. what we have seen from this investigation