ObjectiveTo evaluate the importance of prenatal education on the proper use of seat belts during pregnancy.MethodsThree hundred fifty pregnant women were provided surveys at their first prenatal visit and then again at 28–32 weeks' gestation. The surveys assessed the actual use and placement of seat belts before and during pregnancy and knowledge about the use of restraint systems during pregnancy. In addition, the women were surveyed with respect to the information provided to them regarding seat belt use.ResultsTwo hundred ninety-eight women returned both surveys, 68% of whom reported using seat belts in a manner currently recommended. Nearly 20% stated that they rarely or never used seat belts during their pregnancy. Women who reported receiving information regarding seat belt use from their prenatal provider were significantly more likely both to use their belts (83% versus 65%;P< .001) and to identify proper belt placement (77% versus 57%;P< .001) compared with those who did not receive information, respectively.ConclusionsDespite current recommendations and laws regarding seat belt use during pregnancy, one-third of women report either not using seat belts or using them improperly during pregnancy. Prenatal care providers can substantially influence the proper use of seat belts by discussing their correct use during pregnancy.